DEVELOPMENT AND VALIDATION OF ANALYTICAL METHOD FOR SIMULTANEOUS ESTIMATION OF TENO-FOVIR AND EMTRICITABINE IN PHARMACEUTICAL DOSAGE FORMS BY HPLC
Keywords:
Tenofovir, Emtricitabine, Simultaneous Estimation, Validation, HPLCAbstract
A simple, accurate, rapid and precise High performance Liquid Chromatography (HPLC) method was developed and validated for the simultaneous estimation of Tenofovir (TFR) and Emtricitabine (ECB) in combined tablet dosage form. Chromatogram was run through column of Hi Q C18 W (150 mm: 4.6 mm, 5 µ). Mobile phase containing Buffer, Methanol and Acetonitrile (40: 50: 10) was pumped through column at a flow rate of 1.3 ml/ min. 0.01 N KH2PO4 was used as Buffer. UV detection was carried out at 265 nm and 278 nm for Tenofovir and Emtricitabine respectively. Retention times of Tenofovir and Emtricitabine were found to be 4.38 min and 3.22 min respectively. % RSD of the Tenofovir and Emtricitabine was found to be less than 2 %. The Calibration curves were plotted in the concentration range of 6-36 µg/ ml for Tenofovir and 5-30 µg/ml for Emtricitabine with R2= 0.99. % Recovery was found between 97-100 % for both the drugs.
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