Abstract
Objectives: The purpose of the research is to develop a simple, precise, economical, accurate, reproducible, and sensitive method for the estimation of sofosbuvir and velpatasvir drug product by rp-hplc methodMethods: New Analytical method was developed for the estimation of Velpatasvir and Sofosbuvir in drug product by liquid chromatography. The chromatographic separation was achieved on C18 column (Luna 18 150*4.6mm3.0um) at ambient temperature. The separation achieved employing a mobile phase consists of 0.1%v/v Formic acid in water: Methanol: Acetonitrile (35:40:25). The flow rate was 0.8ml/ minute and ultra violet detector at 269nm. The average retention time for Velpatasvir and Sofosbuvir found to be 2.62 min and 3.72 min.Results: The developed method was validated as per the ICH analytical method validation guidelines. All validation parameters were within the acceptable range. The assay methods were found to be linear from 80-240 µg/ml for Sofosbuvir and 20-60µg/ml for Velpatasvir. The correlation coefficient was 0.9998 and 0.9992 for velpatasvir and sofosbuvir respectively. The mean percentage recovery for the developed method was found to be in the range of 98.4-100.4% for velpatasvir and 98.6-100.6% for sofosbuvir. The developed method was also found to be robustConclusion: The developed method was found to be suitable for the routine quantitative analysis of Velpatasvir and Sofosbuvir in bulk and pharmaceutical dosage form. It was also concluded that developed method was accurate, precise, linear, reproducible, robust, and sensitive.
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