ESTIMATION OF ENTECAVIR IN PURE AND PHARMACEUTICAL FORMULATION BY USING HIGH PERFORMANCE LIQUID CHROMATOGRAPHY

A rapid and precise Reverse Phase High Performance Liquid Chromatographic method has been developed for the validated of Entecavir, in its pure form as well as in tablet dosage form. Chromatography was carried out on a Phenomenex Gemini C18 (4.6 x 250mm, 5µm) column using a mixture of Acetonitrile and Water (15:85% v/v) as the mobile phase at a flow rate of 0.9ml/min, the detection was carried out at 215nm. The retention time of the Entecavir was 3.1 ±0.02min. The method produce linear responses in the concentration range of 30-150µg/ml of Entecavir. The method precision for the determination of assay was below 2.0%RSD. The method is useful in the quality control of bulk and pharmaceutical formulations. Keywords: Entecavir, RP-HPLC, validation.