DEVELOPMENT AND VALIDATION OF HPTLC METHOD FOR ESTIMATION OF IBUPROFEN AND FAMOTIDINE IN PHARMACEUTICAL DOSAGE FORM

A simple, sensitive, and precise high performance thin layer chromatographic method (HPTLC) has been developed for the estimation of ibuprofen and famotidine in combined dosage form. The method employed HPTLC aluminum plates precoated with silica gel 60F(254) as the stationary phase while the solvent system was methanol: ethyl acetate: hexane: ammonia (2:6:1:0.5, v/v/v/v). The Rf values were observed to be 0.41 +/- 0.02 and 0.69 +/- 0.02 for ibuprofen and famotidine, respectively. The densitometric analysis was carried out in absorbance mode at 264nm. The method was linear in the range of 320-9600ng/band for ibuprofen and 10-300ng/band for famotidine. The method was validated with respect to accuracy, precision, specificity, and robustness. The limit of detection for ibuprofen and famotidine were found to be 110 and 3ng/band, respectively. The limit of quantification for ibuprofen and famotidine were found to be 320 and 10ng/band, respectively. The method was successfully applied to the estimation of ibuprofen and famotidine in combined dosage form.