ESTIMATION OF OLMESARTAN MEDOXOMIL IN TABLET DOSAGE FORMS USING REVERSE PHASE HIGH PERFORMANCE LIQUID CHROMATOGRAPHY METHOD
*Divya Niranajan, Ankita Kishore, Rituparna Roy Sarkar, Praveen Tahilani, Gaurav Goyanar
ABSTRACT
Reversed phase high performance liquid chromatographic method was developed and validated for the estimation of Olmesartan medoxomil in bulk and formulation. Selected mobile phase was a combination of phosphate buffer with pH adjusted at 2.8 and acetonitrile (35:65% v/v) and wavelength selected was 250 nm. Retention time of Olmesartan medoxomil was 2.591 min. Linearity of the method was found to be 50-150 μg/ml, with the regression coefficient of 0.9993. Quantification was done by calculating area of the peak and the detection limit and quantitation limit ware 0.02μg/mL and 0.09μg/mL, respectively. There was no significant difference in the intraday and inter day analysis of Olmesartan medoxomil determined for three different concentrations using this method. Present method can be applied for the determination of Olmesartan medoxomil in quality control of formulation without interference of the excipients.
Keywords: Olmesartan medoxomil, Reverse phase, HPLC and Tablets.
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