<?xml version="1.0" encoding="utf8"?>
 <!DOCTYPE article PUBLIC "-//NLM//DTD JATS (Z39.96) Journal Publishing DTD v1.0 20120330//EN" "http://jats.nlm.nih.gov/publishing/1.0/JATS-journalpublishing1.dtd"> <article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" article-type="review-article" dtd-version="1.0" xml:lang="en">
  <front>
    <journal-meta>
      <journal-id journal-id-type="publisher-id">JAPST</journal-id>
      <journal-title-group>
        <journal-title>Journal of Advanced Pharmaceutical Science And Technology </journal-title>
      </journal-title-group>
      <issn pub-type="epub">2328-0182</issn>
      <publisher>
        <publisher-name>Open Access Pub</publisher-name>
        <publisher-loc>United States</publisher-loc>
      </publisher>
    </journal-meta>
    <article-meta>
      <article-id pub-id-type="publisher-id">JAPST-20-3664</article-id>
      <article-id pub-id-type="doi">10.14302/issn.2328-0182.japst-20-3664</article-id>
      <article-categories>
        <subj-group>
          <subject>review-article</subject>
        </subj-group>
      </article-categories>
      <title-group>
        <article-title>Review article on Analytical Techniques of Lamivudine Determination in Different Matrices</article-title>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author">
          <name>
            <surname>Roshdy</surname>
            <given-names>E. Saraya</given-names>
          </name>
          <xref ref-type="aff" rid="idm1842756332">1</xref>
        </contrib>
        <contrib contrib-type="author">
          <name>
            <surname>Magda</surname>
            <given-names>Elhenawee</given-names>
          </name>
          <xref ref-type="aff" rid="idm1842759212">2</xref>
        </contrib>
        <contrib contrib-type="author">
          <name>
            <surname>Hanaa</surname>
            <given-names>Saleh</given-names>
          </name>
          <xref ref-type="aff" rid="idm1842759212">2</xref>
        </contrib>
        <contrib contrib-type="author">
          <name>
            <surname>Mahmoud</surname>
            <given-names>M. Sebaiy</given-names>
          </name>
          <xref ref-type="aff" rid="idm1842758420">3</xref>
          <xref ref-type="aff" rid="idm1842758276">*</xref>
        </contrib>
      </contrib-group>
      <aff id="idm1842756332">
        <label>1</label>
        <addr-line>Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Port Said University, Port Said, 42511, Egypt.</addr-line>
      </aff>
      <aff id="idm1842759212">
        <label>2</label>
        <addr-line>Department of Analytical Chemistry, Faculty of Pharmacy, Zagazig University, Zagazig, Egypt.</addr-line>
      </aff>
      <aff id="idm1842758420">
        <label>3</label>
        <addr-line>Department of Medicinal Chemistry, Faculty of Pharmacy, Zagazig University, Zagazig, 44519, Egypt. </addr-line>
      </aff>
      <aff id="idm1842758276">
        <label>*</label>
        <addr-line>Corresponding author</addr-line>
      </aff>
      <contrib-group>
        <contrib contrib-type="editor">
          <name>
            <surname>Fatma</surname>
            <given-names>Mohammed Mady</given-names>
          </name>
          <xref ref-type="aff" rid="idm1842590956">1</xref>
        </contrib>
      </contrib-group>
      <aff id="idm1842590956">
        <label>1</label>
        <addr-line>Department of Pharmaceutics, Minia University, Egypt.</addr-line>
      </aff>
      <author-notes>
        <corresp>
    
    Mahmoud M. Sebaiy, <addr-line>Department of Medicinal Chemistry, Faculty of Pharmacy, Zagazig University, Zagazig, 44519, Egypt</addr-line>. E-mail:<email>sebaiуm@gmail.com</email> Tel: <phone>01062780060</phone>.                 Fax: <fax>0552303266</fax></corresp>
        <fn fn-type="conflict" id="idm1842806796">
          <p>No author has any associations that may represent a potential conflict of interest.</p>
        </fn>
      </author-notes>
      <pub-date pub-type="epub" iso-8601-date="2021-01-05">
        <day>05</day>
        <month>01</month>
        <year>2021</year>
      </pub-date>
      <volume>2</volume>
      <issue>3</issue>
      <fpage>37</fpage>
      <lpage>46</lpage>
      <history>
        <date date-type="received">
          <day>13</day>
          <month>12</month>
          <year>2020</year>
        </date>
        <date date-type="accepted">
          <day>31</day>
          <month>12</month>
          <year>2020</year>
        </date>
        <date date-type="online">
          <day>05</day>
          <month>01</month>
          <year>2021</year>
        </date>
      </history>
      <permissions>
        <copyright-statement>© </copyright-statement>
        <copyright-year>2021</copyright-year>
        <copyright-holder>Roshdy E. Saraya, et al.</copyright-holder>
        <license xlink:href="http://creativecommons.org/licenses/by/4.0/" xlink:type="simple">
          <license-p>This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.</license-p>
        </license>
      </permissions>
      <self-uri xlink:href="http://openaccesspub.org/japst/article/1543">This article is available from http://openaccesspub.org/japst/article/1543</self-uri>
      <abstract>
        <p>In this literature review, we will introduce most of up-to-date reported methods that have been developed for determination of lamivudine in its pure form, combined form with other drugs, combined form with degradation products, and in biological samples.</p>
      </abstract>
      <kwd-group>
        <kwd>DNA</kwd>
        <kwd>HIV-1</kwd>
        <kwd>HIV-2</kwd>
      </kwd-group>
      <counts>
        <fig-count count="1"/>
        <table-count count="3"/>
        <page-count count="10"/>
      </counts>
    </article-meta>
  </front>
  <body>
    <sec id="idm1842590236" sec-type="intro">
      <title>Introduction</title>
      <sec id="idm1842590524">
        <title>Lamivudine</title>
        <p>(LAM) is an analogue of cytidine. It can inhibit both types HIV-1 and HIV-2 reverse transcriptase and also the reverse transcriptase of hepatitis B virus. It is phosphorylated to active metabolites that compete for incorporation into viral DNA. They inhibit the HIV reverse transcriptase enzyme competitively and act as a chain terminator of DNA synthesis <xref ref-type="bibr" rid="ridm1842248572">1</xref>. The lack of a    3'-OH group in the incorporated nucleoside analogue prevents the formation of the 5' to 3' phosphodiester linkage essential for DNA chain elongation, and therefore, the viral DNA growth is terminated <xref ref-type="bibr" rid="ridm1842251668">2</xref>.</p>
        <p>As such, in this literature review, we will introduce most of up-to-date reported methods that have been developed for determination of LAM in its pure form, combined form with other drugs, combined form with degradation products, and in biological samples.</p>
        <fig id="idm1842558580">
          <graphic xlink:href="images/image1.jpg" mime-subtype="jpg"/>
        </fig>
      </sec>
    </sec>
    <sec id="idm1842586924">
      <title>Review of Analytical Methods</title>
      <p>Various techniques were used for the analysis of RIT in pure forms, in their pharmaceutical formulations and in biological fluids. The available reported methods in the literature can be summarized as follows: <xref ref-type="table" rid="idm1842558220">Table 1</xref>.</p>
      <table-wrap id="idm1842558220">
        <label>Table 1.</label>
        <caption>
          <title> Spectrophotometric Methods</title>
        </caption>
        <table rules="all" frame="box">
          <tbody>
            <tr>
              <td>Drugs</td>
              <td>Method or reagent</td>
              <td>λ<sub>max</sub></td>
              <td>Ref</td>
            </tr>
            <tr>
              <td>LAMand zidovudine</td>
              <td>First drivative spectrphotometry</td>
              <td>239.5 and 245.3 nm for LAM and 225.1 and 251.5 nm for zidovudine</td>
              <td>
                <xref ref-type="bibr" rid="ridm1842255420">3</xref>
              </td>
            </tr>
            <tr>
              <td>LAM and stavudine</td>
              <td>First drivative spectrphotometry</td>
              <td>280 for stavudine and 300 nm for LAM.</td>
              <td>
                <xref ref-type="bibr" rid="ridm1842353060">4</xref>
              </td>
            </tr>
            <tr>
              <td>LAM and stavudine</td>
              <td>3-methyl-2-benzothiozolinone hydrazone hydrocloride and ferric chloride</td>
              <td>660 nm for LAM  and 630 nm for stavudine</td>
              <td>
                <xref ref-type="bibr" rid="ridm1842096940">5</xref>
              </td>
            </tr>
            <tr>
              <td>LAM</td>
              <td>chloramine-T and methyl orange, or chloramine-T  and indigo carmine</td>
              <td>520nm or 610nm</td>
              <td>
                <xref ref-type="bibr" rid="ridm1842100252">6</xref>
              </td>
            </tr>
            <tr>
              <td>LAMand zidovudine</td>
              <td>derivative spectrophotometry</td>
              <td>246 nm for LAM and 263 nm for zidovudine</td>
              <td>
                <xref ref-type="bibr" rid="ridm1842098740">7</xref>
              </td>
            </tr>
            <tr>
              <td>LAM</td>
              <td>N HCl0.1 N NaOH</td>
              <td>279.6 nm269.8 nm</td>
              <td>
                <xref ref-type="bibr" rid="ridm1842082284">8</xref>
              </td>
            </tr>
            <tr>
              <td>Tenofovir, Disoproxil and LAM</td>
              <td>Simultaneous equation methodMulticomponent analysisDerivative spectroscopy method</td>
              <td>247, 259 and 272 nm </td>
              <td>
                <xref ref-type="bibr" rid="ridm1842087036">9</xref>
              </td>
            </tr>
            <tr>
              <td>LAMand zidovudine</td>
              <td>Derivative Spectrophotometry</td>
              <td>242, and 236 nm</td>
              <td>
                <xref ref-type="bibr" rid="ridm1842077572">10</xref>
              </td>
            </tr>
            <tr>
              <td>LAM</td>
              <td>methyl orange and indigocarmine</td>
              <td>520n and 610 nm</td>
              <td>
                <xref ref-type="bibr" rid="ridm1842074404">11</xref>
              </td>
            </tr>
            <tr>
              <td>LAMand zidovudine</td>
              <td>UV spectroscopy and multivariate               calibration</td>
              <td>250 and 267 nm</td>
              <td>
                <xref ref-type="bibr" rid="ridm1842071020">12</xref>
              </td>
            </tr>
            <tr>
              <td>LAM and efavirenz</td>
              <td>overlain spectra method</td>
              <td>271 and 247 nm</td>
              <td>
                <xref ref-type="bibr" rid="ridm1842055788">13</xref>
              </td>
            </tr>
            <tr>
              <td>LAM</td>
              <td>chloranilic acid and 2,3-dichloro-5,6-dicyano-1,4-benzoquinone</td>
              <td>221 and 230 nm</td>
              <td>
                <xref ref-type="bibr" rid="ridm1842053412">14</xref>
              </td>
            </tr>
            <tr>
              <td>LAM, nevirapine and zidovudine</td>
              <td>overlain spectra method</td>
              <td>280.2nm, 312nm and 266.8nm </td>
              <td>
                <xref ref-type="bibr" rid="ridm1842053268">15</xref>
              </td>
            </tr>
            <tr>
              <td>LAM, Sofosbuvir,and Ritonavir</td>
              <td>Silver nanoparticles synthesis</td>
              <td>421 nm for Sofosbuvir and Ritonavir and at 425 nm for Lamivudine LAM</td>
              <td>
                <xref ref-type="bibr" rid="ridm1842064716">16</xref>
              </td>
            </tr>
          </tbody>
        </table>
      </table-wrap>
      <sec id="idm1842542420">
        <title>2. Chromatographic Methods</title>
        <p>(<xref ref-type="table" rid="idm1842455500">Table 2</xref> a, <xref ref-type="table" rid="idm1842455500">Table 2</xref> b.)</p>
        <table-wrap id="idm1842455500">
          <label>Table 2 a.</label>
          <caption>
            <title> HPLC</title>
          </caption>
          <table rules="all" frame="box">
            <tbody>
              <tr>
                <th>
                  <bold>Matrix</bold>
                </th>
                <td>
                  <bold>Column</bold>
                </td>
                <td>
                  <bold>Mobile phase</bold>
                </td>
                <td>
                  <bold>system</bold>
                </td>
                <td>
                  <bold>Ref</bold>
                </td>
              </tr>
              <tr>
                <td>plasma</td>
                <td>Aquasil C<sub>18</sub> column</td>
                <td>ACN : water (15:85 v/v)</td>
                <td>HPLC–MS/MS</td>
                <td>
                  <xref ref-type="bibr" rid="ridm1842061476">17</xref>
                </td>
              </tr>
              <tr>
                <td>Tablet</td>
                <td>Spherisorb<sup>®</sup> C<sub>18</sub> analytical column</td>
                <td>methanol: water: ACN (70:20:10 (v/v/v))</td>
                <td>HPLC-UV 265 nm</td>
                <td>
                  <xref ref-type="bibr" rid="ridm1842255420">3</xref>
                </td>
              </tr>
              <tr>
                <td>plasma</td>
                <td>a Shim-pack<sup>®</sup> C<sub>8</sub> column</td>
                <td>Sodium dihydrogen phosphate monohydrate (10 mM): methanol:ACN (94:3:3, v/v/v, pH 4.8)</td>
                <td>HPLC-UV 270 nm</td>
                <td>
                  <xref ref-type="bibr" rid="ridm1842033972">18</xref>
                </td>
              </tr>
              <tr>
                <td>plasma</td>
                <td>Phenomenex C<sub>8</sub> column</td>
                <td>A gradient elution with 20 mM ammonium acetate buffer with pH 4.5 : ACN</td>
                <td>HPLC–MS/MS</td>
                <td>
                  <xref ref-type="bibr" rid="ridm1842030660">19</xref>
                </td>
              </tr>
              <tr>
                <td>Tablet</td>
                <td>Symmetry C<sub>18</sub> column</td>
                <td>methanol: water (20:80 v/v)</td>
                <td>HPLC-UV 270 nm</td>
                <td>
                  <xref ref-type="bibr" rid="ridm1842353060">4</xref>
                </td>
              </tr>
              <tr>
                <td>Tablet</td>
                <td>C<sub>18</sub> column</td>
                <td>A gradient elution with 80% of 10 mM acetate buffer (pH 3.5): 20% methanol: 50% CAN: 50% isopropyl alcohol.</td>
                <td>HPLC-UV 270 nm</td>
                <td>
                  <xref ref-type="bibr" rid="ridm1842027780">20</xref>
                </td>
              </tr>
              <tr>
                <td>Plasma and saliva</td>
                <td>Zorbax SB-C<sub>18</sub> column </td>
                <td>0.005 M di potassium hydrogen phosphate solution in water (pH 6.8): methanol (92:8 v/v).</td>
                <td>HPLC-UV 270 nm</td>
                <td>
                  <xref ref-type="bibr" rid="ridm1842024036">21</xref>
                </td>
              </tr>
              <tr>
                <td>Tablet</td>
                <td>HiQ SilC<sub>18</sub> column</td>
                <td>0.01 M potassiumdi hydrogen orthophosphate (pH 3.0): methanol (55:45 v/v)</td>
                <td>HPLC-UV 272 nm</td>
                <td>
                  <xref ref-type="bibr" rid="ridm1842022452">22</xref>
                </td>
              </tr>
              <tr>
                <td>plasma</td>
                <td>C<sub>18</sub> column</td>
                <td>a mixture of phosphate buffer (0.05 M) containing TEA (1 mL/L pH 3.5): methanol (91:9, v/v)</td>
                <td>HPLC-UV 276 nm</td>
                <td>
                  <xref ref-type="bibr" rid="ridm1842007252">23</xref>
                </td>
              </tr>
              <tr>
                <td>plasma</td>
                <td>Lichrospher<sup>®</sup> RP‐ C<sub>18</sub> column</td>
                <td>20 mM ammonium acetate: methanol containing 1% of acetic acid (60:40 v/v)</td>
                <td>HPLC–MS/MS</td>
                <td>
                  <xref ref-type="bibr" rid="ridm1842004516">24</xref>
                </td>
              </tr>
              <tr>
                <td>plasma</td>
                <td>a phenyl column with Phenomenex C<sub>18 </sub>guard column</td>
                <td>5% methanol in 20 mM dibasic phosphate buffer (pH 6).</td>
                <td>HPLC-UV 256 nm</td>
                <td>
                  <xref ref-type="bibr" rid="ridm1842002212">25</xref>
                </td>
              </tr>
              <tr>
                <td>plasma</td>
                <td>octylsilane column</td>
                <td>20 mM sodium phosphate buffer with (8 mM  1 octane sulfonic acid sodium salt): ACN (86:14, v/v)</td>
                <td>HPLC-UV 265 nm</td>
                <td>
                  <xref ref-type="bibr" rid="ridm1841998900">26</xref>
                </td>
              </tr>
              <tr>
                <td>plasma</td>
                <td>C<sub>18</sub> analytical column</td>
                <td>CAN: water (9:91, v/v)</td>
                <td>HPLC-UV 271 nm</td>
                <td>
                  <xref ref-type="bibr" rid="ridm1841995732">27</xref>
                </td>
              </tr>
              <tr>
                <td>plasma</td>
                <td>Aquasil C<sub>18</sub> column</td>
                <td>ACN: water (15:85, v/v)</td>
                <td>HPLC–MS/MS</td>
                <td>
                  <xref ref-type="bibr" rid="ridm1842009772">28</xref>
                </td>
              </tr>
              <tr>
                <td>plasma</td>
                <td>A Symmetry Shield RP C<sub>18 </sub>column</td>
                <td>A gradient elution with acetate buffer (20 mM potassium acetate pH 4.60): ACN</td>
                <td>HPLC-UV 260 nm</td>
                <td>
                  <xref ref-type="bibr" rid="ridm1841978380">29</xref>
                </td>
              </tr>
              <tr>
                <td>plasma</td>
                <td>a Shiseido C<sub>8 </sub>column</td>
                <td>a gradient elution with methanol: water (80:20, v/v) and water, both containing 10 mM ammonium acetate</td>
                <td>HPLC –MS/MS</td>
                <td>
                  <xref ref-type="bibr" rid="ridm1841973988">30</xref>
                </td>
              </tr>
              <tr>
                <td>Plasma</td>
                <td>a Spherisorb<sup>®</sup> C<sub>18</sub> analytical column</td>
                <td>methanol: water (75 : 25, v/v)</td>
                <td>HPLC-UV at 265 nm</td>
                <td>
                  <xref ref-type="bibr" rid="ridm1841973052">31</xref>
                </td>
              </tr>
              <tr>
                <td>Plasma</td>
                <td>a C<sub>18 </sub>column</td>
                <td>CAN: water (13:87, v/v)</td>
                <td>HPLC-UV at 220 nm</td>
                <td>
                  <xref ref-type="bibr" rid="ridm1841985364">32</xref>
                </td>
              </tr>
              <tr>
                <td>Tablet</td>
                <td>Thermo Hypersil Gold C<sub>18 </sub>column</td>
                <td>Agradiant elution with 20 mM sodium phosphate buffer (pH 3.5) with phosphoric acid : methanol</td>
                <td>HPLC-UV at 265 nm</td>
                <td>
                  <xref ref-type="bibr" rid="ridm1841983780">33</xref>
                </td>
              </tr>
              <tr>
                <td>Plasma</td>
                <td>a C<sub>18</sub> column</td>
                <td>0.01M sodium dihydrogen phosphate : methanol: ACN (4 : 2 : 3 v/v/v)</td>
                <td>HPLC-UV at 285 nm</td>
                <td>
                  <xref ref-type="bibr" rid="ridm1842098740">7</xref>
                </td>
              </tr>
              <tr>
                <td>Plasma</td>
                <td>Phenyl column C<sub>18 </sub>column</td>
                <td>ACN: 0.085% phosphoric acid (12:88, v/v)</td>
                <td>HPLC-UV at 270 nm</td>
                <td>
                  <xref ref-type="bibr" rid="ridm1841980684">34</xref>
                </td>
              </tr>
              <tr>
                <td>Plasma</td>
                <td>Aquasil<sup>®</sup> C<sub>18</sub></td>
                <td>A gradient elution with 0.05% FA in either water or methanol</td>
                <td>HPLC – MS/MS</td>
                <td>
                  <xref ref-type="bibr" rid="ridm1841935132">35</xref>
                </td>
              </tr>
              <tr>
                <td>Plasma</td>
                <td>Zorbax<sup>®</sup> C<sub>18</sub> column</td>
                <td>methanol: water: phosphate buffer (pH 5.65) (80:10:10; v/v/v)</td>
                <td>HPLC-UV at 275 nm</td>
                <td>
                  <xref ref-type="bibr" rid="ridm1841933044">36</xref>
                </td>
              </tr>
              <tr>
                <td>Plasma</td>
                <td>A Phenomenex C18</td>
                <td>Methanol: Water (85:15%v/v)</td>
                <td>HPLC-UV at 270 nm</td>
                <td>
                  <xref ref-type="bibr" rid="ridm1841929660">37</xref>
                </td>
              </tr>
              <tr>
                <td>Plasma and tissues</td>
                <td>a phenyl column</td>
                <td>8% ACN in 5 mm 1‐heptane sulfonic acid dissolved in 30 mm AF buffer (pH 3.3).</td>
                <td>HPLC-UV at 254 nm</td>
                <td>
                  <xref ref-type="bibr" rid="ridm1841928652">38</xref>
                </td>
              </tr>
              <tr>
                <td>Plasma</td>
                <td>a Vydac C<sub>18</sub> column </td>
                <td>A gradient elution, both CAN and ultrapure water solvents contained 0.2% FA.</td>
                <td>HPLC – MS/MS</td>
                <td>
                  <xref ref-type="bibr" rid="ridm1841923108">39</xref>
                </td>
              </tr>
              <tr>
                <td>Rabbit plasma</td>
                <td>Hypersil BDS C-18 column</td>
                <td>0.25% Triethylamine buffer (pH 3.0): CAN (70:30, v/v)</td>
                <td>HPLC-UV at 256 nm</td>
                <td>
                  <xref ref-type="bibr" rid="ridm1841921596">40</xref>
                </td>
              </tr>
              <tr>
                <td>Plasma</td>
                <td>Zorbax SB C<sub>8</sub> column</td>
                <td>A gradient elution with methanol: acetic acid sodium acetate buffer (pH 3.9)</td>
                <td>HPLC-UV at 260 nm</td>
                <td>
                  <xref ref-type="bibr" rid="ridm1841919436">41</xref>
                </td>
              </tr>
              <tr>
                <td>Plasma</td>
                <td>Prontosil C<sub>18</sub> column</td>
                <td>1 mM ammonium acetate in water (pH 6.5 ± 0.3): ACN (50:50 v/v)</td>
                <td>HPLC – MS/MS</td>
                <td>
                  <xref ref-type="bibr" rid="ridm1841913604">42</xref>
                </td>
              </tr>
              <tr>
                <td>Plasma</td>
                <td>A Chromolith C<sub>18</sub> column</td>
                <td>50 mM sodium dihydrogen phosphate : TEA (996:4 v/v)</td>
                <td>HPLC-UV at 278 nm</td>
                <td>
                  <xref ref-type="bibr" rid="ridm1841944636">43</xref>
                </td>
              </tr>
              <tr>
                <td>Plasma</td>
                <td>An ACE 5 CN column</td>
                <td>0.5% FA  in water: ACN (55:45, v/v)</td>
                <td>HPLC – MS/MS</td>
                <td>
                  <xref ref-type="bibr" rid="ridm1841942332">44</xref>
                </td>
              </tr>
              <tr>
                <td>Rat tissue</td>
                <td>a C<sub>18 </sub>column</td>
                <td>methanol: 7.5 mM ammonium acetate (30:70, v/v)</td>
                <td>HPLC – MS/MS</td>
                <td>
                  <xref ref-type="bibr" rid="ridm1841939236">45</xref>
                </td>
              </tr>
              <tr>
                <td>Plasma</td>
                <td>Pack VP - ODS C<sub>18</sub> column</td>
                <td>phosphate buffer (pH7.0): ACN : methanol (91:0.1:9)</td>
                <td>HPLC-UV at 274 nm</td>
                <td>
                  <xref ref-type="bibr" rid="ridm1841886684">46</xref>
                </td>
              </tr>
              <tr>
                <td>Plasma</td>
                <td>a C<sub>18</sub> column</td>
                <td>A gradient with 0.1% FA in water and 0.1% FA in methanol</td>
                <td>HPLC – MS/MS</td>
                <td>
                  <xref ref-type="bibr" rid="ridm1841883660">47</xref>
                </td>
              </tr>
              <tr>
                <td>Tablet</td>
                <td>a C<sub>18</sub> column</td>
                <td>water: methanol (60:40 v/v)</td>
                <td>HPLC-UV 270 nm</td>
                <td>
                  <xref ref-type="bibr" rid="ridm1841881500">48</xref>
                </td>
              </tr>
              <tr>
                <td>Plasma</td>
                <td>A Phenomonex C<sub>18 </sub>column</td>
                <td>A queous solution of 15% ACN and 0.1% acetic acid</td>
                <td>HPLC – MS/MS</td>
                <td>
                  <xref ref-type="bibr" rid="ridm1841876676">49</xref>
                </td>
              </tr>
              <tr>
                <td>Tablet</td>
                <td>A bondapak C<sub>18</sub></td>
                <td>0.02 M tri-sodium citrate and methanol (70:30 v/v)</td>
                <td>HPLC-UV at 266 nm</td>
                <td>
                  <xref ref-type="bibr" rid="ridm1841873796">50</xref>
                </td>
              </tr>
              <tr>
                <td>Tablet</td>
                <td>A thermo BDS C<sub>18 </sub>column</td>
                <td>A formic acid and methanol in the ratio of 50:50</td>
                <td>HPLC-UV at 264 nm</td>
                <td>
                  <xref ref-type="bibr" rid="ridm1841872356">51</xref>
                </td>
              </tr>
              <tr>
                <td>Plasma</td>
                <td>a C<sub>8</sub> column</td>
                <td>A gradient elution with 10 mM potassium phosphate, 3% ACN, and methanol</td>
                <td>HPLC-UV at 272 nm</td>
                <td>
                  <xref ref-type="bibr" rid="ridm1841867100">52</xref>
                </td>
              </tr>
              <tr>
                <td>Tablet</td>
                <td>a Hypersil BDS, C<sub>18</sub> column</td>
                <td>o- phosphoric acid: methanol (70:30)</td>
                <td>HPLC-UV at 220 nm</td>
                <td>
                  <xref ref-type="bibr" rid="ridm1841864796">53</xref>
                </td>
              </tr>
              <tr>
                <td>Plasma</td>
                <td>A Peerless Basic C<sub>18</sub> column</td>
                <td>0.1% formic acid in water: methanol (15:85, v/v)</td>
                <td>HPLC – MS/MS</td>
                <td>
                  <xref ref-type="bibr" rid="ridm1841862348">54</xref>
                </td>
              </tr>
              <tr>
                <td>Tablet</td>
                <td>a C<sub>18 </sub>column</td>
                <td>methanol and water (89:11 v/v)</td>
                <td>HPLC-UV at 272 nm</td>
                <td>
                  <xref ref-type="bibr" rid="ridm1841861772">55</xref>
                </td>
              </tr>
              <tr>
                <td>Tablet</td>
                <td>a Diamonsil C<sub>l8</sub> column</td>
                <td>0.025 mol ammonium acetate (pH 3.9 ± 0.1)-methanol (90:10).</td>
                <td>HPLC-UV at 270 nm</td>
                <td>
                  <xref ref-type="bibr" rid="ridm1841841836">56</xref>
                </td>
              </tr>
              <tr>
                <td>Plasma</td>
                <td>a C<sub>18 </sub>column</td>
                <td>A gradient elution with 10 mM  acetate buffer (pH 6.5)- ACN</td>
                <td>HPLC-UV at 265 nm</td>
                <td>
                  <xref ref-type="bibr" rid="ridm1841838308">57</xref>
                </td>
              </tr>
              <tr>
                <td>Plasma</td>
                <td>a Hypurity Advance C<sub>18</sub></td>
                <td>ACN :0.1% FA  (76:24, v/v)</td>
                <td>HPLC – MS/MS</td>
                <td>
                  <xref ref-type="bibr" rid="ridm1841836148">58</xref>
                </td>
              </tr>
              <tr>
                <td>Tablet</td>
                <td>A LunaC<sub>18</sub></td>
                <td>A gradient elution with 50mM ammonium acetate buffer (pH = 6.8) and methanol</td>
                <td>HPLC-UV at 265 nm</td>
                <td>
                  <xref ref-type="bibr" rid="ridm1841830748">59</xref>
                </td>
              </tr>
              <tr>
                <td>plasma</td>
                <td>a Hypersil BDS, C18 column</td>
                <td>0.1 M ammonium acetate buffer in 0.5% acetic acid, v/v and methanol (40:60, v/v)</td>
                <td>HPLC-UV at 270 nm</td>
                <td>
                  <xref ref-type="bibr" rid="ridm1841830244">60</xref>
                </td>
              </tr>
              <tr>
                <td>Tablet</td>
                <td>An YMC pack C<sub>8 </sub>column</td>
                <td>buffer pH 3.5: methanol (90:10 v/v)</td>
                <td>HPLC-UV at 265 nm</td>
                <td>
                  <xref ref-type="bibr" rid="ridm1841827004">61</xref>
                </td>
              </tr>
              <tr>
                <td>Tablet</td>
                <td>a Kromasil C<sub>18 </sub>analytical column</td>
                <td>methanol: 10 mM phosphate buffer (pH 5.0) (70:30 v\v).</td>
                <td>HPLC-UV at 254 nm</td>
                <td>
                  <xref ref-type="bibr" rid="ridm1841821172">62</xref>
                </td>
              </tr>
              <tr>
                <td>Tablet</td>
                <td>A Luna C<sub>18</sub></td>
                <td>0.1 % triethylamine (pH 5.11: ACN (70:30)</td>
                <td>HPLC-UV at 245 nm</td>
                <td>
                  <xref ref-type="bibr" rid="ridm1841819444">63</xref>
                </td>
              </tr>
              <tr>
                <td>Tablet</td>
                <td>a Luna hydrophilic interaction column</td>
                <td>ACN /10 mM ammonium formate (95:5, v/v)</td>
                <td>HPLC – MS/MS</td>
                <td>
                  <xref ref-type="bibr" rid="ridm1841816996">64</xref>
                </td>
              </tr>
              <tr>
                <td>Tablet</td>
                <td>a C<sub>18 </sub>column</td>
                <td>Agradient elution  with 0.05 M Phosphate buffer (pH 6.2): ACN</td>
                <td>HPLC-UV 260 nm</td>
                <td>
                  <xref ref-type="bibr" rid="ridm1841816348">65</xref>
                </td>
              </tr>
              <tr>
                <td>Tablet</td>
                <td>A Phenomenex Luna C<sub>18 </sub>column</td>
                <td>ACN : methanol: water 30: 45: 25 (v/v/v)</td>
                <td>HPLC-UV 258 nm</td>
                <td>
                  <xref ref-type="bibr" rid="ridm1841811020">66</xref>
                </td>
              </tr>
            </tbody>
          </table>
        </table-wrap>
        <table-wrap id="idm1842117484">
          <label>Table 2 b.</label>
          <caption>
            <title> HPTLC</title>
          </caption>
          <table rules="all" frame="box">
            <tbody>
              <tr>
                <th>
                  <bold>Matrix</bold>
                </th>
                <td>
                  <bold>Stationary phase</bold>
                </td>
                <td>
                  <bold>Mobile phase</bold>
                </td>
                <td>
                  <bold>detector</bold>
                </td>
                <td>
                  <bold>Ref</bold>
                </td>
              </tr>
              <tr>
                <td>Tablet</td>
                <td>silica-gel 60 F<sub>254 </sub>plate</td>
                <td>toluene/chloroform/methanol (1:6:3 v/v/v)</td>
                <td>UV- 276 and 271 nm</td>
                <td>
                  <xref ref-type="bibr" rid="ridm1841787236">67</xref>
                </td>
              </tr>
              <tr>
                <td>Tablet</td>
                <td>silica-gel 60 F<sub>254</sub> plate</td>
                <td>Acetone: chloroform:methanol (4: 4: 2 v/v/v)</td>
                <td>UV- 265nm</td>
                <td>
                  <xref ref-type="bibr" rid="ridm1841784068">68</xref>
                </td>
              </tr>
              <tr>
                <td>Tablet</td>
                <td>silica-gel 60 F<sub>254</sub> plate</td>
                <td>chloroform: methanol: toluene (8: 2: 2, v/v/v)</td>
                <td>UV- 265nm</td>
                <td>
                  <xref ref-type="bibr" rid="ridm1841780684">69</xref>
                </td>
              </tr>
              <tr>
                <td>Tablet</td>
                <td>silica-gel 60 F<sub>254</sub> plate</td>
                <td>ethyl acetate, methanol, toluene and conc ammonia (38.7:19.4:38.7:3.2, v:v:v:v)</td>
                <td>UV- 254nm</td>
                <td>
                  <xref ref-type="bibr" rid="ridm1841778236">70</xref>
                </td>
              </tr>
              <tr>
                <td>Tablet</td>
                <td>silica-gel 60 F254 plate</td>
                <td>n-hexane: chloroform: methanol (1:7:2 v/v/v)</td>
                <td>UV- 275 nm</td>
                <td>
                  <xref ref-type="bibr" rid="ridm1841774924">71</xref>
                </td>
              </tr>
            </tbody>
          </table>
        </table-wrap>
      </sec>
    </sec>
    <sec id="idm1842360924">
      <title>Other Methods</title>
      <p>Titremetry <xref ref-type="bibr" rid="ridm1842100252">6</xref><xref ref-type="bibr" rid="ridm1842074404">11</xref>, capillary electrophoresis <xref ref-type="bibr" rid="ridm1841770964">72</xref><xref ref-type="bibr" rid="ridm1841767148">73</xref>, chemometry <xref ref-type="bibr" rid="ridm1841764772">74</xref>, Voltamitry <xref ref-type="bibr" rid="ridm1841763764">75</xref>.</p>
    </sec>
    <sec id="idm1842359772" sec-type="conclusions">
      <title>Conclusion</title>
      <p>This literature review represents an up to date survey about all reported methods that have been developed for determination of the anticancer drug, lamivudine in its pure form, combined form with other drugs, combined form with degradation products, and in biological samples such as liquid chromatography, spectrophotometry, electrochemistry, etc... </p>
    </sec>
  </body>
  <back>
    <ref-list>
      <ref id="ridm1842248572">
        <label>1.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <name>
            <surname>Betts</surname>
            <given-names>John</given-names>
          </name>
          <article-title>Sue Ho. (2016).Martindale’: fromabrustozotarolimus—130 years of pharmacy knowledge.Dementia</article-title>
          <volume>14</volume>
          <issue>53</issue>
          <fpage>583</fpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1842251668">
        <label>2.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <name>
            <surname>Ching</surname>
            <given-names>Lung Lai</given-names>
          </name>
          <article-title>Man Fung Yuen. (2000).Profound suppression of hepatitis B virus replication with lamivudine.Journal of medical virology</article-title>
          <volume>61</volume>
          <issue>3</issue>
          <fpage>367</fpage>
          <lpage>373</lpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1842255420">
        <label>3.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <name>
            <surname>Uslu</surname>
            <given-names>B</given-names>
          </name>
          <article-title>S.A.Özkan. (2002).Determination of lamivudine and zidovudine in binary mixtures using first derivative spectrophotometric, first derivative of the ratio-spectra and high-performance liquid chromatography–UV methods.Analytica Chimica Acta</article-title>
          <volume>466</volume>
          <issue>1</issue>
          <fpage>175</fpage>
          <lpage>185</lpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1842353060">
        <label>4.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <name>
            <surname>Kapoor</surname>
            <given-names>Namita</given-names>
          </name>
          <article-title>Sateesh Khandavilli, Ramesh Panchagnula. (2006).Simultaneous determination of lamivudine and stavudine in antiretroviral fixed dose combinations by first derivative spectrophotometry andhigh performanceliquid chromatography.Journal of pharmaceutical and biomedical analysis</article-title>
          <volume>41</volume>
          <issue>3</issue>
          <fpage>761</fpage>
          <lpage>765</lpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1842096940">
        <label>5.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <name>
            <surname>Sankar</surname>
            <given-names>D G</given-names>
          </name>
          <article-title>(2002).Spectrophotometric determination of lamivudine and stavudine.Indian journal of pharmaceutical sciences</article-title>
          <volume>64</volume>
          <issue>5</issue>
          <fpage>504</fpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1842100252">
        <label>6.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <name>
            <surname>Basavaiah</surname>
            <given-names>K</given-names>
          </name>
          <article-title>BC Somashekar. (2006).Titrimetricand spectrophotometric determination of lamivudine in pharmaceuticals.Indian</article-title>
          <source>Journal of Chemical Technology</source>
          <volume>13</volume>
          <issue>1</issue>
          <fpage>7</fpage>
          <lpage>12</lpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1842098740">
        <label>7.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <name>
            <surname>Nachname</surname>
            <given-names>Vorname</given-names>
          </name>
          <article-title>Derivative-differential UV spectrophotometry and compensation technique for the simultaneous determination of zidovudine and lamivudine in human serum</article-title>
          <date>
            <year>2004</year>
          </date>
          <source>Die Pharmazie-An International Journal of Pharmaceutical Sciences</source>
          <volume>59</volume>
          <issue>2</issue>
          <fpage>106</fpage>
          <lpage>111</lpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1842082284">
        <label>8.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <name>
            <surname>Shalini</surname>
            <given-names>S</given-names>
          </name>
          <article-title>(2009).Application ofuv-spectrophotometric methods for estimation of lamivudine in tablets.Digest</article-title>
          <source>Journal of Nanomaterials &amp; Biostructures (DJNB)</source>
          <volume>4</volume>
          <issue>2</issue>
          <fpage>357</fpage>
          <lpage>360</lpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1842087036">
        <label>9.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <name>
            <surname>Sharma</surname>
            <given-names>R</given-names>
          </name>
          <name>
            <surname>Mehta</surname>
            <given-names>K</given-names>
          </name>
          <article-title>(2010).Simultaneous spectrophotometric estimation of tenofovir disoproxil fumarate and lamivudine in three component tablet formulation containing efavirenz.Indian journal of pharmaceutical sciences</article-title>
          <volume>72</volume>
          <issue>4</issue>
          <fpage>527</fpage>
          <lpage>530</lpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1842077572">
        <label>10.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <name>
            <surname>Reza</surname>
            <given-names>Mahmoud</given-names>
          </name>
          <article-title>Sohrabi and Mahshid Tayefeh Zarkesh. (2014).Spectra resolution for simultaneous spectrophotometric determination of lamivudine and zidovudine components in pharmaceutical formulation of human immunodeficiency virus drug based on using continuous wavelet transform and derivative transform techniques.Talanta</article-title>
          <volume>122</volume>
          <issue>1</issue>
          <fpage>223</fpage>
          <lpage>228</lpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1842074404">
        <label>11.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <name>
            <surname>Basavaiah</surname>
            <given-names>K</given-names>
          </name>
          <name>
            <surname>Somashekar</surname>
            <given-names>B C</given-names>
          </name>
          <name>
            <surname>Ramakrishna</surname>
            <given-names>V</given-names>
          </name>
          <name>
            <surname>Rapid</surname>
            <given-names/>
          </name>
          <article-title>titrimetric and spectrophotometric assay methods for the determination of lamivudine in pharmaceuticals using iodate and two dyes.Journal of Analytical Chemistry</article-title>
          <date>
            <year>2007</year>
          </date>
          <volume>62</volume>
          <issue>6</issue>
          <fpage>542</fpage>
          <lpage>548</lpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1842071020">
        <label>12.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <name>
            <surname>Severino</surname>
            <given-names>Grangeiro Jr</given-names>
          </name>
          <article-title>(2011).Simultaneous spectrophotometric determination of lamivudine and zidovudine in fixed dose combinations using multivariate calibration.Química Nova</article-title>
          <volume>34</volume>
          <issue>5</issue>
          <fpage>859</fpage>
          <lpage>863</lpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1842055788">
        <label>13.</label>
        <mixed-citation xlink:type="simple" publication-type="book">
          <name>
            <surname>A</surname>
            <given-names>Manikanta Kumar</given-names>
          </name>
          <article-title>(2012).Development and validation of UV Spectrophotometric method for simultaneous estimation of</article-title>
          <chapter-title>Lamivudine and Efavirenz in the Pharmaceutical dosage form.Journal of Advanced Pharmacy Education &amp; Research Oct-Dec</chapter-title>
          <volume>2</volume>
          <issue>4</issue>
          <fpage>210</fpage>
          <lpage>214</lpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1842053412">
        <label>14.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <name>
            <surname>K</surname>
            <given-names>C Madu</given-names>
          </name>
          <name>
            <surname>Ukoha</surname>
            <given-names>P</given-names>
          </name>
          <name>
            <surname>Attama</surname>
            <given-names>A</given-names>
          </name>
          <article-title>(2011).Spectrophotometric determination of lamivudine usingchloranilicacid and 2, 3-dichloro-5,6-dicyano-1, 4-benzoquinone (DDQ).American</article-title>
          <source>Journal of Analytical Chemistry</source>
          <volume>2</volume>
          <issue>07</issue>
          <fpage>849</fpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1842053268">
        <label>15.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <name>
            <surname>Vaishali</surname>
            <given-names>P Nagulwar</given-names>
          </name>
          <name>
            <surname>Kishor</surname>
            <given-names>P Bhusari</given-names>
          </name>
          <article-title>A validated UV spectrophotometric method for the simultaneous estimation of Lamivudine, Nevirapine and zidovudine in combined tablet dosage form</article-title>
          <date>
            <year>2009</year>
          </date>
          <source>Journal of Pharmacy Research</source>
          <volume>2</volume>
          <issue>4</issue>
          <fpage>666</fpage>
          <lpage>669</lpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1842064716">
        <label>16.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <name>
            <surname>R</surname>
            <given-names>E Saraya</given-names>
          </name>
          <name>
            <surname>Elhenawee</surname>
            <given-names>M</given-names>
          </name>
          <name>
            <surname>Saleh</surname>
            <given-names>H</given-names>
          </name>
          <article-title>Silver Nanoparticles Synthesis for Sensitive Spectrophotometric Determination of Sofosbuvir, Lamivudine, and Ritonavir in Pure Forms and Pharmaceutical Dosage Forms</article-title>
          <date>
            <year>2020</year>
          </date>
          <source>Journal of AOAC International</source>
          <volume>103</volume>
          <issue>1</issue>
          <fpage>140</fpage>
          <lpage>147</lpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1842061476">
        <label>17.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <name>
            <surname>A</surname>
            <given-names>S Pereira</given-names>
          </name>
          <article-title>(2000).Simultaneous determination of lamivudine and zidovudine concentrations in human seminal plasma using high-performance liquid chromatography and tandem mass spectrometry.Journal of Chromatography B: Biomedical Sciences and Applications</article-title>
          <volume>742</volume>
          <issue>1</issue>
          <fpage>173</fpage>
          <lpage>183</lpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1842033972">
        <label>18.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <name>
            <surname>E</surname>
            <given-names>K Kano</given-names>
          </name>
          <article-title>(2005).Determination of lamivudine in human plasma by HPLC and its use in bioequivalence studies.International journal of pharmaceutics.297(1-2):</article-title>
          <fpage>73</fpage>
          <lpage>79</lpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1842030660">
        <label>19.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <name>
            <surname>Fan</surname>
            <given-names>B</given-names>
          </name>
          <name>
            <surname>M</surname>
            <given-names>G Bartlett</given-names>
          </name>
          <name>
            <surname>J</surname>
            <given-names>T Stewart</given-names>
          </name>
          <article-title>(2002).Determination of lamivudine/stavudine/efavirenz in human serum using liquid chromatography/electrospray tandem mass spectrometry with ionization polarity switch.Biomedical Chromatography</article-title>
          <volume>16</volume>
          <issue>6</issue>
          <fpage>383</fpage>
          <lpage>389</lpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1842027780">
        <label>20.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <name>
            <surname>Kapoor</surname>
            <given-names>S Khandavilli N</given-names>
          </name>
          <article-title>and R.Panchagnula. (2006).Simultaneous determination of lamivudine, stavudine and nevirapine in antiretroviral fixed dose combinations by high performance liquid chromatography.Analytica Chimica Acta</article-title>
          <volume>570</volume>
          <issue>1</issue>
          <fpage>41</fpage>
          <lpage>45</lpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1842024036">
        <label>21.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <name>
            <surname>R</surname>
            <given-names>M Hoetelmans</given-names>
          </name>
          <article-title>determination of (−)-2′-deoxy-3′-thiacytidine (lamivudine) in human plasma, saliva and cerebrospinal fluid by high-performance liquidchromatography with ultraviolet detection.Journal of Chromatography B: Biomedical Sciences and Applications</article-title>
          <date>
            <year>1998</year>
          </date>
          <volume>713</volume>
          <issue>2</issue>
          <fpage>387</fpage>
          <lpage>394</lpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1842022452">
        <label>22.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <name>
            <surname>D</surname>
            <given-names>A Kumar</given-names>
          </name>
          <name>
            <surname>G</surname>
            <given-names>S Rao</given-names>
          </name>
          <name>
            <surname>Rao</surname>
            <given-names>J</given-names>
          </name>
          <article-title>(2010).Simultaneous determination of lamivudine, zidovudine and abacavir in tablet dosage forms by RP HPLC method.Journal of Chemistry</article-title>
          <volume>7</volume>
          <issue>1</issue>
          <fpage>180</fpage>
          <lpage>184</lpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1842007252">
        <label>23.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <name>
            <surname>Bahrami</surname>
            <given-names>G</given-names>
          </name>
          <article-title>et al.,High-performance liquid chromatographic determination of lamivudine in human serum using liquid–liquid extraction; application to pharmacokinetic studies.Journal of chromatography B</article-title>
          <date>
            <year>2005</year>
          </date>
          <volume>823</volume>
          <issue>2</issue>
          <fpage>213</fpage>
          <lpage>217</lpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1842004516">
        <label>24.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <name>
            <surname>Estrela</surname>
            <given-names>Rita de Cassia E</given-names>
          </name>
          <name>
            <surname>Myriam</surname>
            <given-names>C Salvadori</given-names>
          </name>
          <name>
            <surname>Suarez‐Kurtz</surname>
            <given-names>Guilherme</given-names>
          </name>
          <article-title>rapid and sensitive method for simultaneous determination of lamivudine and zidovudine in human serum by on‐line solid‐phase extraction coupled to liquid chromatography/tandem mass spectrometry detection.Rapid communications in mass spectrometry</article-title>
          <date>
            <year>2004</year>
          </date>
          <volume>18</volume>
          <issue>10</issue>
          <fpage>1147</fpage>
          <lpage>1155</lpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1842002212">
        <label>25.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <name>
            <surname>Alnouti</surname>
            <given-names>Yazen</given-names>
          </name>
          <name>
            <surname>Catherine</surname>
            <given-names>A White</given-names>
          </name>
          <name>
            <surname>Michael</surname>
            <given-names>G Bartlett</given-names>
          </name>
          <article-title>(2004).Determination of lamivudine in plasma, amniotic fluid, and rat tissues by liquid chromatography.Journal of Chromatography B</article-title>
          <volume>803</volume>
          <issue>2</issue>
          <fpage>279</fpage>
          <lpage>284</lpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1841998900">
        <label>26.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <name>
            <surname>Fan</surname>
            <given-names>Bin</given-names>
          </name>
          <name>
            <surname>James</surname>
            <given-names>T Stewart</given-names>
          </name>
          <article-title>(2002).Determination of zidovudine/lamivudine/nevirapine in human plasma using ion-pair HPLC.Journal of pharmaceutical and biomedical analysis</article-title>
          <volume>28</volume>
          <issue>5</issue>
          <fpage>903</fpage>
          <lpage>908</lpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1841995732">
        <label>27.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <name>
            <surname>Tarinas</surname>
            <given-names>Alicia</given-names>
          </name>
          <article-title>(2007).Validation of high-performance liquid chromatography methods for determination of zidovudine, stavudine, lamivudine and indinavir in human plasma.Farmacia Hospitalaria</article-title>
          <volume>31</volume>
          <issue>4</issue>
          <fpage>243</fpage>
          <lpage>247</lpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1842009772">
        <label>28.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <name>
            <surname>Kathryn</surname>
            <given-names>B Kenney</given-names>
          </name>
          <article-title>(2000).Simultaneous determinationof zidovudine and lamivudine in human serum using HPLC with tandem mass spectrometry.Journal of pharmaceutical and biomedical analysis</article-title>
          <volume>22</volume>
          <issue>6</issue>
          <fpage>967</fpage>
          <lpage>983</lpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1841978380">
        <label>29.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <name>
            <surname>Verweij-van</surname>
            <given-names>CPWGM Wissen</given-names>
          </name>
          <name>
            <surname>Aarnoutse</surname>
            <given-names>R E</given-names>
          </name>
          <name>
            <surname>Burger</surname>
            <given-names>D M</given-names>
          </name>
          <article-title>Simultaneous determination of the HIV nucleoside analogue reverse transcriptase inhibitors lamivudine, didanosine, stavudine, zidovudine and abacavir in human plasma by reversed phase high performance liquid chromatography.Journal of chromatography B.816(1-2):</article-title>
          <date>
            <year>2005</year>
          </date>
          <fpage>121</fpage>
          <lpage>129</lpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1841973988">
        <label>30.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <name>
            <surname>Li</surname>
            <given-names>Zhou</given-names>
          </name>
          <article-title>(2010).Simultaneous determination of lamivudine, stavudine and nevirapine in human plasma by LC–MS/MS and its application to pharmacokinetic study in clinic.Biomedical Chromatography</article-title>
          <volume>24</volume>
          <issue>9</issue>
          <fpage>926</fpage>
          <lpage>934</lpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1841973052">
        <label>31.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <name>
            <surname>Sibel</surname>
            <given-names>A Ozkan</given-names>
          </name>
          <name>
            <surname>Uslu</surname>
            <given-names>Bengi</given-names>
          </name>
          <article-title>Rapid HPLC assay for lamivudine in pharmaceuticals and human serum.Journal of liquid chromatography &amp; related technologies</article-title>
          <date>
            <year>2002</year>
          </date>
          <volume>25</volume>
          <issue>9</issue>
          <fpage>1447</fpage>
          <lpage>1456</lpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1841985364">
        <label>32.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <name>
            <surname>Liu</surname>
            <given-names>X</given-names>
          </name>
          <article-title>(2006).Development and validation of LC coupled with SPE for simultaneous determination of lamivudine, oxymatrine and its active metabolitematrinein dogplasma.Chromatographia.63(9-10):</article-title>
          <fpage>483</fpage>
          <lpage>486</lpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1841983780">
        <label>33.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <name>
            <surname>Samee</surname>
            <given-names>Weerasak</given-names>
          </name>
          <article-title>(2007).Simultaneous determination of Lamivudine, Stavudine and Nevirapine in the presence of their acid-induced degradation products by HPLC.Thai Pharm Health Sci</article-title>
          <source>J</source>
          <volume>2</volume>
          <issue>1</issue>
          <fpage>39</fpage>
          <lpage>45</lpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1841980684">
        <label>34.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <name>
            <surname>Joanna</surname>
            <given-names>J Zheng</given-names>
          </name>
          <name>
            <surname>Steven</surname>
            <given-names>T Wu</given-names>
          </name>
          <article-title>and Thomas A Emm. (2001).High-performance liquid chromatographic assay for the determination of 2′-deoxy-3′-thiacytidine (lamivudine) in human plasma.Journal of Chromatography B: Biomedical Sciences and Applications</article-title>
          <volume>761</volume>
          <issue>2</issue>
          <fpage>195</fpage>
          <lpage>201</lpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1841935132">
        <label>35.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <name>
            <surname>Hwaung</surname>
            <given-names>JByung</given-names>
          </name>
          <article-title>(2007).Simultaneous determination of 17 antiretroviral drugs in human plasma for quantitative analysis with liquid chromatography–tandem mass spectrometry.Biomedical Chromatography</article-title>
          <volume>21</volume>
          <issue>10</issue>
          <fpage>1095</fpage>
          <lpage>1104</lpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1841933044">
        <label>36.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <name>
            <surname>Savaşer</surname>
            <given-names>A</given-names>
          </name>
          <article-title>(2007).Determination of abacavir, lamivudine and zidovudine in pharmaceutical tablets, human serum and in drug dissolution studies by HPLC.Chromatographia.65(5-6):</article-title>
          <fpage>259</fpage>
          <lpage>265</lpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1841929660">
        <label>37.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <name>
            <surname>Jayaseelan</surname>
            <given-names>S</given-names>
          </name>
          <article-title>et al.,Bioanalytical method development and validation of Lamivudine by</article-title>
          <date>
            <year>2010</year>
          </date>
          <source>RP-HPLC method.Int J Chem Tech Res</source>
          <volume>2</volume>
          <issue>1</issue>
          <fpage>163</fpage>
          <lpage>7</lpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1841928652">
        <label>38.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <name>
            <surname>Alnouti</surname>
            <given-names>Yazen</given-names>
          </name>
          <name>
            <surname>Catherine</surname>
            <given-names>A White</given-names>
          </name>
          <name>
            <surname>Michael</surname>
            <given-names>G Bartlett</given-names>
          </name>
          <article-title>(2004).Simultaneous determination of zidovudine and lamivudine from rat plasma, amniotic ﬂuid and tissues by HPLC.Biomedical Chromatography</article-title>
          <volume>18</volume>
          <issue>9</issue>
          <fpage>641</fpage>
          <lpage>647</lpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1841923108">
        <label>39.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <name>
            <surname>Notari</surname>
            <given-names>Stefania</given-names>
          </name>
          <article-title>et al.,Simultaneous determination of lamivudine, lopinavir, ritonavir, and zidovudine concentration in plasma of HIV‐infected patients by HPLC‐MS/MS.IUBMB life</article-title>
          <date>
            <year>2012</year>
          </date>
          <volume>64</volume>
          <issue>5</issue>
          <fpage>443</fpage>
          <lpage>449</lpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1841921596">
        <label>40.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <name>
            <surname>Akhilesh</surname>
            <given-names>Vikram Singh</given-names>
          </name>
          <name>
            <surname>Lila</surname>
            <given-names>K Nath</given-names>
          </name>
          <name>
            <surname>Nihar</surname>
            <given-names>R</given-names>
          </name>
          <article-title>Pani,Development and validation of analytical method for the estimation of lamivudine in rabbit plasma.Journal of pharmaceutical analysis</article-title>
          <date>
            <year>2011</year>
          </date>
          <volume>1</volume>
          <issue>4</issue>
          <fpage>251</fpage>
          <lpage>257</lpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1841919436">
        <label>41.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <name>
            <surname>Malm</surname>
            <given-names>Mikaela</given-names>
          </name>
          <article-title>et al.,Determination of lamivudine, zidovudine, and nevirapine in capillary blood sampled on filter paper by LC.Journal of Chromatographic Science</article-title>
          <date>
            <year>2009</year>
          </date>
          <volume>47</volume>
          <issue>10</issue>
          <fpage>855</fpage>
          <lpage>862</lpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1841913604">
        <label>42.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <name>
            <surname>Rajani</surname>
            <given-names>Kumar Valluru</given-names>
          </name>
          <name>
            <surname>Kumar</surname>
            <given-names>Praveen</given-names>
          </name>
          <name>
            <surname>Naveen</surname>
            <given-names>Babu Kilaru</given-names>
          </name>
          <article-title>throughput LC–MS/MS method for simultaneous determination of tenofovir, lamivudine and nevirapine in human plasma.Journal of Chromatography B</article-title>
          <date>
            <year>2013</year>
          </date>
          <volume>931</volume>
          <issue>1</issue>
          <fpage>117</fpage>
          <lpage>126</lpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1841944636">
        <label>43.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <name>
            <surname>Mahmoud</surname>
            <given-names/>
          </name>
          <article-title>Alebouyeh and Hossein Amini. (2015).Rapid determination of lamivudine in human plasma by high-performance liquid chromatography.Journal of Chromatography B</article-title>
          <volume>975</volume>
          <issue>1</issue>
          <fpage>40</fpage>
          <lpage>44</lpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1841942332">
        <label>44.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <name>
            <surname>Yadav</surname>
            <given-names>Manish</given-names>
          </name>
          <article-title>et al.,Selective determination of antiretroviral agents tenofovir, emtricitabine, and lamivudine in human plasma by a LC-MS-MS method for a bioequivalence study in healthy Indian subjects.Journal of chromatographic science</article-title>
          <date>
            <year>2010</year>
          </date>
          <volume>48</volume>
          <issue>9</issue>
          <fpage>704</fpage>
          <lpage>713</lpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1841939236">
        <label>45.</label>
        <mixed-citation xlink:type="simple" publication-type="book">
          <name>
            <surname>Alnouti</surname>
            <given-names>Yazen</given-names>
          </name>
          <article-title>et al.,Simultaneous determination of zidovudine and lamivudine from rat tissues by liquid chromatography/tandem mass spectrometry.Rapid</article-title>
          <date>
            <year>2005</year>
          </date>
          <chapter-title>Communications in Mass Spectrometry: An International Journal Devoted to the Rapid Dissemination of Up‐to‐the‐Minute Research in Mass Spectrometry</chapter-title>
          <volume>19</volume>
          <issue>4</issue>
          <fpage>503</fpage>
          <lpage>508</lpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1841886684">
        <label>46.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <name>
            <surname>Shao</surname>
            <given-names>Li-hua</given-names>
          </name>
          <article-title>et al.,Determination of Lamivudine Concentration in Human Serum by HPLC.Chinese</article-title>
          <date>
            <year>2002</year>
          </date>
          <source>Journal of Pharmaceutical Analysis</source>
          <volume>22</volume>
          <issue>1</issue>
          <fpage>53</fpage>
          <lpage>54</lpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1841883660">
        <label>47.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <name>
            <surname>Kromdijk</surname>
            <given-names>W</given-names>
          </name>
          <article-title>et al.,Development and validation of an assay for the simultaneous determination of zidovudine, abacavir, emtricitabine, lamivudine, tenofovir and ribavirin in human plasma using liquid chromatography–tandem mass spectrometry.Journal of Chromatography B</article-title>
          <date>
            <year>2013</year>
          </date>
          <volume>919</volume>
          <issue>1</issue>
          <fpage>43</fpage>
          <lpage>51</lpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1841881500">
        <label>48.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <name>
            <surname>Djurdjevic</surname>
            <given-names>Predrag</given-names>
          </name>
          <article-title>et al.,Chemometric Optimization of a RP‐HPLC Method for the Simultaneous Analysis of Abacavir, Lamivudine, and Zidovudine in Tablets.Analytical letters</article-title>
          <date>
            <year>2004</year>
          </date>
          <volume>37</volume>
          <issue>13</issue>
          <fpage>2649</fpage>
          <lpage>2667</lpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1841876676">
        <label>49.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <name>
            <surname>Joseph</surname>
            <given-names>E Rower</given-names>
          </name>
          <article-title>et al.,Validation of a sensitive LC/MS/MS method for the determination of zidovudine and lamivudine in human plasma.Biomedical Chromatography</article-title>
          <date>
            <year>2012</year>
          </date>
          <volume>26</volume>
          <issue>1</issue>
          <fpage>12</fpage>
          <lpage>20</lpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1841873796">
        <label>50.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <name>
            <surname>Nerurkar</surname>
            <given-names>K K</given-names>
          </name>
          <article-title>et al.,Concurrent assay of lamivudine and zidovudine from combination tablets.Indian journal of pharmaceutical sciences</article-title>
          <date>
            <year>2003</year>
          </date>
          <volume>65</volume>
          <issue>4</issue>
          <fpage>412</fpage>
          <lpage>417</lpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1841872356">
        <label>51.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <name>
            <surname>Patro</surname>
            <given-names>S K</given-names>
          </name>
          <article-title>et al.,Development and Validation ofHigh PerformanceLiquid Chromatographic Method for Determination of Lamivudine from Pharmaceutical Preparation.Journal of Chemistry</article-title>
          <date>
            <year>2010</year>
          </date>
          <volume>7</volume>
          <issue>1</issue>
          <fpage>117</fpage>
          <lpage>122</lpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1841867100">
        <label>52.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <name>
            <surname>De</surname>
            <given-names>acqueline</given-names>
          </name>
          <article-title>Souza,LC–UV methodology for simultaneous determination of lamivudine and zidovudine in plasma by liquid–liquid extraction.Chromatographia</article-title>
          <date>
            <year>2009</year>
          </date>
          <volume>69</volume>
          <issue>2</issue>
          <fpage>231</fpage>
          <lpage>235</lpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1841864796">
        <label>53.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <name>
            <surname>Palled</surname>
            <given-names>M S</given-names>
          </name>
          <article-title>et al.Reverse Phase High Performance Liquid Chromatographic DeterminationOfZidovudine And Lamivudine In Tablet Dosage Form.Indian journal of pharmaceutical sciences</article-title>
          <date>
            <year>2005</year>
          </date>
          <volume>67</volume>
          <issue>1</issue>
          <fpage>110</fpage>
          <lpage>117</lpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1841862348">
        <label>54.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <name>
            <surname>Valluru</surname>
            <given-names>Rajani Kumar</given-names>
          </name>
          <article-title>et al.High throughput LC–MS/MS method for simultaneous determination of zidovudine, lamivudine and nevirapine in human plasma.Journal of Chromatography B</article-title>
          <date>
            <year>2013</year>
          </date>
          <volume>921</volume>
          <issue>1</issue>
          <fpage>9</fpage>
          <lpage>14</lpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1841861772">
        <label>55.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <name>
            <surname>Mandloi</surname>
            <given-names>D K</given-names>
          </name>
          <article-title>et al.Method development and validation of RP-HPLC in the application of in vitro dissolution study of lamivudine in bulk drug and tablet formulation.J Chem Pharm Res</article-title>
          <date>
            <year>2009</year>
          </date>
          <volume>1</volume>
          <issue>1</issue>
          <fpage>286</fpage>
          <lpage>296</lpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1841841836">
        <label>56.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <name>
            <surname>Meng</surname>
            <given-names>L I</given-names>
          </name>
          <name>
            <surname>Jing</surname>
            <given-names>L U</given-names>
          </name>
          <name>
            <surname>Xin</surname>
            <given-names>D I</given-names>
          </name>
          <article-title>determinationof lamivudine and its related substances.Chinese</article-title>
          <date>
            <year>2009</year>
          </date>
          <source>Journal of Pharmaceutical Analysis</source>
          <volume>29</volume>
          <issue>7</issue>
          <fpage>1216</fpage>
          <lpage>1219</lpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1841838308">
        <label>57.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <name>
            <surname>Wattananat</surname>
            <given-names>Triporn</given-names>
          </name>
          <article-title>Wiyada Akarawut. (2010).Simultaneous determination of stavudine and lamivudine in human plasma by high performance liquid chromatography and its application to abioavailability study.Southeast</article-title>
          <source>Asian Journal of Tropical Medicine and Public Health</source>
          <volume>41</volume>
          <issue>2</issue>
          <fpage>369</fpage>
          <lpage>377</lpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1841836148">
        <label>58.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <name>
            <surname>Murali</surname>
            <given-names>Krishna Matta</given-names>
          </name>
          <article-title>et al.,Simultaneous quantitation of lamivudine, zidovudine and nevirapine in human plasma by liquid chromatography–tandem mass spectrometry and application to a pharmacokinetic study.Acta Pharmaceutica Sinica B</article-title>
          <date>
            <year>2012</year>
          </date>
          <volume>2</volume>
          <issue>5</issue>
          <fpage>472</fpage>
          <lpage>480</lpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1841830748">
        <label>59.</label>
        <mixed-citation xlink:type="simple" publication-type="book">
          <name>
            <surname>Moji</surname>
            <given-names>Christianah Adeyeye</given-names>
          </name>
          <name>
            <surname>Joshi</surname>
            <given-names>Anjali</given-names>
          </name>
          <article-title>(2012).Reversed Phase LC-UV method development and validation for simultaneous determination of three antiretrovirals: lamivudine, zidovudine, nevirapine and possible degradants in a fixed dose pharmaceutical product.Journal</article-title>
          <chapter-title>of Pharmaceutical Technology and Drug Research</chapter-title>
          <volume>1</volume>
          <issue>1</issue>
          <fpage>1</fpage>
          <lpage>4</lpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1841830244">
        <label>60.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <name>
            <surname>Nandi</surname>
            <given-names>Utpal</given-names>
          </name>
          <article-title>et al.,Development and validation of an HPLC‐UV method for simultaneous determination of zidovudine, lamivudine, and nevirapine in human plasma and its application to pharmacokinetic study in human volunteers.Drug testing and analysis</article-title>
          <date>
            <year>2013</year>
          </date>
          <volume>5</volume>
          <issue>6</issue>
          <fpage>485</fpage>
          <lpage>491</lpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1841827004">
        <label>61.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <name>
            <surname>Balasekarreddy</surname>
            <given-names>C</given-names>
          </name>
          <article-title>et al.,Validated HPLC Method for determination of Lamivudine and Stavudine in their formulations.Pharmanest</article-title>
          <date>
            <year>2010</year>
          </date>
          <volume>1</volume>
          <issue>1</issue>
          <fpage>22</fpage>
          <lpage>8</lpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1841821172">
        <label>62.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <name>
            <surname>Dhara</surname>
            <given-names>S Bhavsar</given-names>
          </name>
          <name>
            <surname>Bhavini</surname>
            <given-names>N Patel</given-names>
          </name>
          <name>
            <surname>Chhaganbhai</surname>
            <given-names>N Patel</given-names>
          </name>
          <article-title>RP-HPLC method for simultaneous estimation of tenofovir disoproxil fumarate, lamivudine, and efavirenz in combined tablet dosage form. Pharmaceutical methods</article-title>
          <date>
            <year>2012</year>
          </date>
          <volume>3</volume>
          <issue>2</issue>
          <fpage>73</fpage>
          <lpage>78</lpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1841819444">
        <label>63.</label>
        <mixed-citation xlink:type="simple" publication-type="book">
          <name>
            <surname>A</surname>
            <given-names>Manikanta Kumar</given-names>
          </name>
          <article-title>(2012).Development and Validation of RP-HPLC method for simultaneous estimation of</article-title>
          <chapter-title>Lamivudine and Efavirenz in the Pharmaceutical Dosage Form.Journal of Advanced Pharmacy Education &amp; Research Oct-Dec</chapter-title>
          <volume>2</volume>
          <issue>4</issue>
          <fpage>232</fpage>
          <lpage>238</lpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1841816996">
        <label>64.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <name>
            <surname>Hye</surname>
            <given-names>Young Ji</given-names>
          </name>
          <article-title>(2010).Quantification of lamivudine in human plasma by hydrophilic interaction chromatography‐tandem mass spectrometry.Journal of separation science.33(6‐7):</article-title>
          <fpage>948</fpage>
          <lpage>954</lpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1841816348">
        <label>65.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <name>
            <surname>Nagasarapu</surname>
            <given-names>Mallikarjuna Rao</given-names>
          </name>
          <name>
            <surname>Dannana</surname>
            <given-names>Gowri Sankar</given-names>
          </name>
          <article-title>Development and validation of stability-indicating HPLC method for simeltaneous determination of Lamivudine, Tenofovir, and Dolutegravir in bulk and their tablet dosage form</article-title>
          <date>
            <year>2015</year>
          </date>
          <source>Future Journal of Pharmaceutical Sciences</source>
          <volume>1</volume>
          <issue>2</issue>
          <fpage>73</fpage>
          <lpage>77</lpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1841811020">
        <label>66.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <name>
            <surname>Anandakumar</surname>
            <given-names>K</given-names>
          </name>
          <article-title>et al.,RP-HPLC method for simultaneous estimation of lamivudine, tenofovir disoproxil fumarate and efavirenz in tablet formulation.Journal of analytical chemistry</article-title>
          <date>
            <year>2013</year>
          </date>
          <volume>68</volume>
          <issue>9</issue>
          <fpage>815</fpage>
          <lpage>821</lpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1841787236">
        <label>67.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <name>
            <surname>Habte</surname>
            <given-names>G</given-names>
          </name>
          <name>
            <surname>Hymete</surname>
            <given-names>A</given-names>
          </name>
          <name>
            <surname>A-M</surname>
            <given-names>I Mohamed</given-names>
          </name>
          <article-title>Simultaneous separation and determination of lamivudine and zidovudine in pharmaceutical formulations using the HPTLC method.Analytical Letters</article-title>
          <date>
            <year>2009</year>
          </date>
          <volume>42</volume>
          <issue>11</issue>
          <fpage>1552</fpage>
          <lpage>1570</lpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1841784068">
        <label>68.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <name>
            <surname>Sudha</surname>
            <given-names>T</given-names>
          </name>
          <name>
            <surname>Ravikumar</surname>
            <given-names>V R</given-names>
          </name>
          <name>
            <surname>Hemalatha</surname>
            <given-names>P V</given-names>
          </name>
          <article-title>Validated HPTLC method for simultaneousdetermination of lamivudine and abacavir sulphate in tablet dosage form.International</article-title>
          <date>
            <year>2010</year>
          </date>
          <source>Journal of Pharmaceutical Sciences and Research</source>
          <volume>1</volume>
          <issue>11</issue>
          <fpage>107</fpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1841780684">
        <label>69.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <name>
            <surname>Chandra</surname>
            <given-names>P</given-names>
          </name>
          <article-title>(2011).Application of high-performance thin-layer chromatographic method for the simultaneous determination of Lamivudine and tenofovir disoproxil fumarate in pharmaceutical dosage form.Journal of the Chilean Chemical Society</article-title>
          <volume>56</volume>
          <issue>2</issue>
          <fpage>702</fpage>
          <lpage>705</lpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1841778236">
        <label>70.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <name>
            <surname>Shewiyo</surname>
            <given-names>D H</given-names>
          </name>
          <article-title>et al.Development and validation of a normal-phase HPTLC method for the simultaneous analysis of lamivudine, stavudine and nevirapine in fixed-dose combination tablets.Journal of pharmaceutical and biomedical analysis</article-title>
          <date>
            <year>2011</year>
          </date>
          <volume>54</volume>
          <issue>3</issue>
          <fpage>445</fpage>
          <lpage>450</lpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1841774924">
        <label>71.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <name>
            <surname>Solomon</surname>
            <given-names>Gebremedhin</given-names>
          </name>
          <article-title>et al.HPTLC-densitometric method development and validationfor simultaneousdetermination of lamivudine, nevirapine and zidovudine in fixed dose combinations.Thai</article-title>
          <source>Journal of Pharmaceutical Sciences</source>
          <volume>35</volume>
          <issue>2</issue>
          <fpage>77</fpage>
          <lpage>88</lpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1841770964">
        <label>72.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <name>
            <surname>Fan</surname>
            <given-names>Bin</given-names>
          </name>
          <name>
            <surname>James</surname>
            <given-names>T Stewart</given-names>
          </name>
          <article-title>(2002).Determination of lamivudine/didanosine/saquinavir in human serum using capillary zone electrophoresis.Journal of liquid chromatography &amp; related technologies</article-title>
          <volume>25</volume>
          <issue>2</issue>
          <fpage>241</fpage>
          <lpage>249</lpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1841767148">
        <label>73.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <name>
            <surname>Sekar</surname>
            <given-names>R</given-names>
          </name>
          <name>
            <surname>Azhaguvel</surname>
            <given-names>S</given-names>
          </name>
          <article-title>(2005).Simultaneous determination of HIV-protease inhibitors lamivudine and zidovudine in pharmaceutical formulations by micellar electrokinetic chromatography.Journal of pharmaceutical and biomedical analysis.39(3-4):</article-title>
          <fpage>653</fpage>
          <lpage>660</lpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1841764772">
        <label>74.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <article-title>Abd El-Maaboud I Mohamed and Workalemahu Mikre. (2009).Determination of lamivudine and stavudine in pharmaceutical preparations using chemometrics-assisted spectrophotometry.Saudi</article-title>
          <source>Pharmaceutical Journal</source>
          <volume>17</volume>
          <issue>4</issue>
          <fpage>275</fpage>
          <lpage>281</lpage>
        </mixed-citation>
      </ref>
      <ref id="ridm1841763764">
        <label>75.</label>
        <mixed-citation xlink:type="simple" publication-type="journal">
          <name>
            <surname>Farias</surname>
            <given-names>Percio</given-names>
          </name>
          <name>
            <surname>A</surname>
            <given-names/>
          </name>
          <name>
            <surname>Ana</surname>
            <given-names>Isa P</given-names>
          </name>
          <article-title>Cordoves. (2012).Ultratracedetermination of the antiretroviral drug lamivudine in diluted alkaline electrolyte by adsorptive stripping voltammetry.ECS Transactions</article-title>
          <volume>43</volume>
          <issue>1</issue>
          <fpage>267</fpage>
          <lpage>287</lpage>
        </mixed-citation>
      </ref>
    </ref-list>
  </back>
</article>
