Analytical Method Development and Validation for the Simultaneous Estimation of Aspirin, Clopidogrel and Rosuvastatin in Pharmaceutical Dosage Form
A new, simple, novel, accurate, precise, reliable, rapid and linear reverse phase high-performance liquid chromatography (RP-HPLC) method was developed and fully validated for simultaneous qualitative and quantitative estimation of Rosuvastatin (ROS), Clopidogrel (CLOP) and Aspirin (ASP) in bulk and pharmaceutical dosage form as per International Conference on Harmonization (ICH) guidelines. In the present work, good chromatographic separation was achieved by isocratic method using a Hypersil BDS C18 column (250 mm ×4.6, 5 μm) and a mobile phase consisting of KH2Po4 buffer pH-6.0: acetonitrile in the ratio 60:40, at a flow rate of 1 ml/min. The effluents obtained were monitored at 242nm with the UV-visible detector. The calibration curves obtained were linear (r2=0.999) over the concentration range of 7.5-22.5μg/ml and 1-3μg/ml for CLOP, ASP and ROS respectively. A run time of 7.0 minutes for each sample made it possible to analyze more than 200 samples per day. The retention time of ASP, CLOP and ROS was found to be 3.103 min, 4,277 min and 5.707 min respectively. The high recovery values (99%-101%) indicate a satisfactory accuracy. The low percent relative standard deviation (% RSD) values in the precision study reveal that the method is precise therefore the method can be used for routine monitoring of CLOP, ASP and ROS in industry in the assay of bulk drug and dosage form.
Keywords: RP-HPLC, Rosuvastatin, Clopidogrel, Aspirin, Method validation, ICH guidelines.
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