Development and Validation of Stability Indicating RP-HPLC Method for Estimation of Fluvastatin Sodium in Bulk and Capsule Dosage Form
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C. K. Pithawalla Institute of Pharmaceutical Science and Research, INDIA
Dharamsinh Desai University, INDIA
Shree Dhanvantary Pharmaceutical Analysis and Research Centre (SDPARC), INDIA
Ashok H. Akabari   

C.K.Pithawalla Institute of Pharmaceutical Science and Research, India
Online publication date: 2016-12-12
Publication date: 2016-12-12
Eurasian J Anal Chem 2017;12(2):87–105
A sensitive, specific and stability-indicating reversed phase high performance liquid chromatography-diode array detection method was developed for the quantitative determination of fluvastatin sodium in the presence of its degradation products. The chromatographic separation was performed on a Phenomenex Luna C18 column (150 X 4.0 mm, 5µm) in isocratic mode using acetonitrile and 0.02M potassium phosphate buffer (50 + 50, v/v, pH 5.0 adjusted with potassium hydroxide) as the mobile phase at a flow rate of 1.0 ml/min. The quantification was performed with a photodiode array detector at 235nm based on peak area. The method showed good linearity over the concentration range of 5-40 µg/mL with a detection limit of 1.1µg/mL and quantification limit of 3.3µg/mL. The proposed LC method was used to investigate the kinetics of acidic and oxidative degradation of fluvastatin sodium. The acidic and oxidative degradation had shown an apparent first-order kinetics and rate constants were found to be 0.0191µg/mL/min and 0.0048µg/mL/min, respectively.
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