Abstract
A simple precise, rapid accurate and sensitive non-aqueous potentiometric titration method was developed for quantitative determination of favipiravir from pharmaceutical dosage form. The titration was carried out using standardized 0.1 N perchloric acid. The proposed method was found to be precise with % RSD <1 (n = 6). The method showed strict linearity (r2 > 0.9999) between 10 % to 50 % w/v of 0.200 mg of drug substance weight. The percentage recovery of favipiravir in the optimized method was between 99.65 to 100.08 %. The method is also found to be rugged when checked by different analysts and using different lots of reagents and different makes of titrators.
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