Spectrophotometric Determination of Cisapride in Pharmaceutucal FormulationsAuthor(s): K. Prabhavathi, T. Sreenivasulu Reddy, G. Abdul Huq and N. Rami Reddy
A simple and economical spectrophotometric method has been developed for the assay of cisaprode in pharmaceutical formulations. The method is based on the formation of a wine red coloured azo product by the diazotization of cisapride followed by a coupling reaction with p-hydroxy acetanilide. The absorbance of wine red coloured azo product is measured at 498 nm against reagent blank. Beer’s law is obeyed in the concentration of 40-200 μg/mL of drug.