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Short Communication Open Access
Two simple, rapid, specific and accurate analytical methods for the estimation of cefetamet pivoxil hydrochloride and pitavastatin calcium in bulk drug and in their tablet formulations are described. These methods are based on difference spectrophotometry, wherein the measurement is done at maximum 221 nm and minimum 275 nm for cefetamet whereas at maximum 240 nm and minimum 259 nm for pitavastatin. The Beer's law was obeyed in the concentration range of 1-35 µg/ml and 1-25 µg/ml and the molar absorptivities were 1.3×10 4 lit mol -1 cm -1 and 2.4×10 4 lit mol -1 cm -1 for cefetamet pivoxil hydrochloride and pitavastatin calcium, respectively. The proposed methods were validated and successfully applied to the estimation of drugs in tablet formulations.
Cefetamet pivoxil hydrochloride, difference spectrophotometry, pharmaceutical formulations, pitavastatin calcium