Validation of a liquid chromatographic method for determination of related substances in a candidate certified reference material of captopril
DOI:
https://doi.org/10.1590/S1984-82502011000200016Keywords:
Captopril^i1^squalitative analy, Medicines^i1^sanaly, Medicines^i1^smethod validat, Medicines^i1^sanalytical quality cont, High performance liquid chromatography^i1^squalitative analy, Medicines^i1^scontaminat, Captopril^i1^scertified reference standaAbstract
This paper describes the validation of a reversed-phase high performance liquid chromatography method (RP-HPLC) with diode array detection (DAD) for determination of related substances (impurities from organic synthesis and degradation products) of captopril according to the Brazilian Pharmacopeia IV. The aim of this study was to guarantee the method accuracy for quantification of related substances, an essential requisite to determine, using the mass balance approach, the captopril content in the first Brazilian certified reference material (CRM) of an active pharmaceutical ingredient (API), developed by Inmetro. The captopril instability in solution is discussed and the captopril content determined by mass balance is compared to the results from titration and differential scanning calorimetry (DSC).Downloads
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Published
2011-06-01
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How to Cite
Validation of a liquid chromatographic method for determination of related substances in a candidate certified reference material of captopril . (2011). Brazilian Journal of Pharmaceutical Sciences, 47(2), 351-362. https://doi.org/10.1590/S1984-82502011000200016