A simple, sensitive and reproducible spectrophotmetric method is developed for the determination of Atorvastatin calcium in bulk and dosage forms. This method is based on the formation of colour species on binding of Atorvastatin calcium with potassium ferro cyanide and ferric chloride to produce pale green coloured solution (l max at 425 nm). Results of analysis were validated statistically and by recovery studies. This method is successfully employed for the determination of Atorvastatin calcium in various pharmaceutical preparations.
Atorvastatin calcium, Visible Spectrophotometric determination, Beer’s Law
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