Stability indicating Ultra Performance Liquid Chromatography method development and validation for simultaneous estimation of artemether and lumefantrine in bulk and pharmaceutical dosage form
Ultra performance liquid chromatography method was developed for the simultaneous estimation of the Artemether (AMT) and Lumefantrine (LFT) in Tablet dosage form. Chromatogram was run through X-bridge C18 100 x 2.1 mm, 3.5m. Mobile phase containing Buffer 0.01N KH2PO4 (3.5pH): Acetonitrile taken in the ratio 55:45 was pumped through column at a flow rate of 0.3ml/min. Buffer used in this method was 0.01N KH2PO4. Temperature was maintained at 30°C. Optimized wavelength selected was 215nm. Retention time of AMT and LFT were found to be 0.787 min and 1.572min. %RSD of the AMT and LFT were and found to be 0.7 and 0.6 respectively. %Recovery was obtained as 99.49% and 100.22% for AMT and LFT respectively. LOD, LOQ values obtained from regression equations of AMT and LFT were 0.03, 0.08 and 0.095, 0.288 respectively. Regression equation of AMT is y = 19308x + 1509 and y = 36919x + 11566 of LFT. The developed method was simple and economical that can be adopted in regular Quality control test in Industries. Keywords: Artemether (AMT), Lumefantrine (LFT), Acetonitrile, UPLC.