Abstract
A simple, isocratic, rapid and accurate reversed phase high performance liquid chromatography method was developed for the quantitative determination of tazarotene. The developed method is also applicable for the related substance determination in bulk drugs. The chromatographic separation was achieved on a Hypersil C18 (250 mm × 4.6 mm 5 μm) column using water pH 2.5 with orthophosphoric acid:acetonitrile (15:85, v/v) as a mobile phase. The chromatographic resolutions between tazarotene and its potential impurity A and B were found greater than three. The limit of detection and limit of quantification of impurities were found to be 25 and 75 ng mL−1. The percentage recovery of impurities in bulk drug sample was ranged from 96.8 to 103.5.The percentage recovery of tazarotene in bulk drug sample was ranged from 98.4 to 100.9. The developed RPLC method was validated with respect to linearity, accuracy, precision and robustness.
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