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ISRN Analytical Chemistry
Volume 2013 (2013), Article ID 534763, 8 pages
Research Article

Method Development and Validation for Estimation of Eperisone Hydrochloride as API and in Tablet Dosage Form by Two Spectroscopic Methods

Department of Quality Assurance, Lachoo Memorial College of Science & Technology (Autonomous), Jodhpur, Rajasthan 342003, India

Received 24 July 2013; Accepted 12 August 2013

Academic Editors: A. Garcia Asuero, S. Göktürk, A. Niazi, and A. Szemik-Hojniak

Copyright © 2013 Joytosh Banerjee et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Two simple and sensitive spectrophotometric methods have been developed for the determination of eperisone hydrochloride based on its ability to be detected in UV region (Normal UV) and its oxidation using potassium permanganate in alkaline medium (kinetic spectroscopic). The detection was done at 261.40 nm and 603.5 nm. The different experimental parameters affecting the method development were studied and optimized. The initial rate and fixed time method were utilized to construct calibration graph, and 5 minutes and 3 minutes, respectively, were found suitable for the determination of the concentration of drug. Linearity was found over the concentration range of 2–20 μg/mL, 15–30 μg/mL, and 15–35 μg/mL by UV, initial rate, and fixed time methods, respectively. The results were validated as per the ICH guidelines. RSD values were found to be less than 2%. The methods were applied for estimation of eperisone hydrochloride in RAPISONE (Abbott, Maharashtra). The assay results were found to be 100.4% ± 0.08, 99.93% ± 0.05, and 99.41% ± 0.04 by UV, initial rate, and fixed time method, respectively. Statistical comparison of the proposed methods showed a good agreement indicating no significant difference in accuracy and precision, thus confirming the suitability of UV and kinetic method for the estimation of eperisone hydrochloride in bulk as well as in tablet dosage forms.