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    <journal-meta>
      <journal-title-group>
        <journal-title>American Journal of Pharmacy and Health Research</journal-title>
        <abbrev-journal-title abbrev-type="publisher">AJPHR</abbrev-journal-title>
      </journal-title-group>
      <issn pub-type="epub">2321-3647</issn>
    </journal-meta>
    <article-meta>
      <article-id pub-id-type="publisher-id">AJPHR211017</article-id>
      <title-group>
        <article-title>Method Development and Validation of Ramipril and Telmisartan in Pharmaceutical Dosage Forms BY RP-HPLC</article-title>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author">
          <name>
            <surname>Rambabu</surname>
            <given-names>R.</given-names>
          </name>
          <xref ref-type="aff" rid="aff1"/>
        </contrib>
        <contrib contrib-type="author">
          <name>
            <surname>Vidyadhara</surname>
            <given-names>S.</given-names>
          </name>
          <xref ref-type="aff" rid="aff2"/>
        </contrib>
        <contrib contrib-type="author">
          <name>
            <surname>Subbarao</surname>
            <given-names>J</given-names>
          </name>
          <xref ref-type="aff" rid="aff1"/>
        </contrib>
      </contrib-group>
      <aff id="aff1">Department of Pharmaceutical Chemistry, Chebrolu Hanumaiah Institute of Pharmaceutical Sciences, Guntur, Andhra Pradesh – 522019.</aff>
      <aff id="aff2">Departments of Pharmaceutics, Chebrolu Hanumaiah Institute of Pharmaceutical Sciences, Guntur, Andhra Pradesh – 522019.</aff>
      <pub-date pub-type="epub" iso-8601-date="2014-11-01">
        <month>11</month>
        <day>01</day>
        <year>2014</year>
      </pub-date>
      <volume>2</volume>
      <issue>11</issue>
      <abstract>
        <p>The simple, sensitive, reliable and economically new method was developed for the estimation of Ramipril (RAM) and Telmisartan (TEL) by RP-HPLC in combined dosage form. After several trials with the different combinations and ratios of solvents, the present chromatographic parameters were optimized. It was found that potassium dihydrogenphosphate (pH 3.0): methanol: acetonitrile (30:20:50 v/v/v) was given satisfactory results. A C18 column (Agilent ODS UG 5 column) having dimensions of 4.5mmx250mm was used. The mobile phase was pumped at a flow rate of 1.0ml/min and the eluents were monitored at 210nm. System suitability was carried out by injecting six replicate injections of 100% standard concentration, number of theoretical plates, HETP(height equivalent Theoretical plate) and resolution were satisfactory. The optimized chromatograms confirm the presence of Ramipril and Telmisartan at Rt: 4.1 min and Rt: 5.11min respectively without any interference. The concentration range of 1-5µg/ml for RAM and 8-40µg/ml for TEL were linear with correlation coefficients 0.999 and 0.989 respectively. The percent recovery studies were found to be 99.5-99.88% and 99.93-99.99% w/w for RAM and TEL respectively which indicate method was accurate. The proposed method was precise and reproducible with %RSD of 0.93 for Ramipril and 0.41 for Telmisartan, respectively. The limits of detection and limits of quantification were 0.10µg/ml and 0.25µg/ml for Ramipril 0.32µg/ml and 0.78µg/ml for Telmisartan, respectively. The method was found to be robust and ruggedness and was well suitable for the estimation of commercial formulations of selected combinations.</p>
      </abstract>
      <kwd-group kwd-group-type="author">
        <kwd>Validation</kwd>
        <kwd>RP-HPLC</kwd>
        <kwd>Ramipril</kwd>
        <kwd>Telmisartan</kwd>
        <kwd>RSD and HETP.</kwd>
      </kwd-group>
    </article-meta>
  </front>
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