Spectrophotometric Estimation of Gemcitabine HCl in Pharmaceutical Dosage form via Oxidative Coupling Reaction

Abstract

Gemcitabine HCl is an antiviral drug, novel, facile, sensitive and selective spectrophotometric method have been developed for the quantitative estimation of gemcitabine HCl in pharmaceutical formulations with coupling reagent. The proposed method involves the oxidative coupling reaction of gemcitabine HCl with 3-methyl-2-benzothiazolinone hydrazone hydrochloride monohydrate in the presence of ferric chloride and acidic medium to form bluish green colored chromogen at 558 nm. There is no interference observed from the excipients that are present in the Gemcitabine HCl pharmaceutical dosage form with this estimation. The optimum reaction conditions and other important analytical parameters were established.