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Stability-indicating High-performance liquid chromatography method for simultaneous determination of aminophylline and chlorpheniramine maleate in pharmaceutical formulations

Author(s): A Ali1, M Ahmed2, T Mahmud2, MA Qadir2, K Nadeem3, A Saleem4
1Government College of Science, Wahdat Road, Lahore, Pakistan 2Institute of Chemistry, University of the Punjab, New Campus, Lahore, Pakistan 3Schazoo Pharmaceutical Laboratories, Kalalwala Stop, 20 Km Lahore Jaranwala Road, District Sheikhupura, Pakistan 4CCL Pharmaceuticals, 65 Quaid-e-Azam Industrial Estate, Kot Lakhpat, Lahore, Pakistan

Correspondence Address:
M Ahmed Government College of Science, Wahdat Road, Lahore Pakistan E-mail: [email protected]

The present work deals with the development and validation of method for simultaneous determination of antihistaminic drugs in pharmaceutical formulations. A precise, specific and accurate reverse phase-high-performance liquid chromatography method for the simultaneous measurement of aminophylline and chlorpheniramine maleate was developed. The separation of drugs was achieved on C-18 (5 μm, 250×4.6 mm) high-performance liquid chromatography column. The runtime for analysis was 10 min. Mobile phase is mixture containing dilute H2SO4:methanol (60:40% v/v) with flow rate adjusted at 1.5 ml/min. The detection of components was performed at a wavelength of 264 nm. Retention times of aminophylline and chlorphinramine maleate were found to be 2.00 and 3.25 min, respectively. Linearity was found in the range of 16-24 μg/ml for chlorpheniramine maleate and 102.4-153.6 μg/ml for aminophylline with a correlation coefficient of 0.9998 and 0.9996, respectively. High peak purity index of 99.99% indicated the complete separation of analytes in the presence of degradation products is justification of method stability. Linearity, accuracy, specificity, precision and robustness studies were performed for method validation.

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