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Research Journal of Pharmacy and Technology
Year : 2015, Volume : 8, Issue : 3
First page : ( 265) Last page : ( 269)
Print ISSN : 0974-3618. Online ISSN : 0974-360X.
Article DOI : 10.5958/0974-360X.2015.00044.X

UV-Spectrophotometric Estimation of Olopatadine hydrochloride in Bulk and Pharmaceutical Dosage Form by area under Curve and second Order Derivative Methods

Rajan V. Rele*

Central Research Laboratory, D.G. Ruparel College, Matunga, Mumbai-400016

*Corresponding Author E-mail: drvinraj@gmail.com

Online published on 2 May, 2015.

Abstract

Simple and precise UV spectrophotometric methods by second order derivative and area under curve [AUC] have been developed and validated for the estimation of olopatadine hydrochloride in bulk and its pharmaceutical formulation. The standard and sample solutions of olopatadine hydrochloride were prepared in methanol. Olopatadine hydrochloride was estimated at 224 nm for the second order derivative UV-spectrophotometric method (A), while in area under curve (AUC) method (B) the zero order spectrum of olopatadine hydrochloride was measured in between 220 nm to 230 nm. Beer's law was obeyed in the concentration range of 1 to 16 μg/ml with coefficient of correlation value 0.9994 for second order derivative method. Similarly in AUC method, Beer's law was obeyed in the concentration range of 1 to 12 μg/ml with coefficient of correlation value 0.9991. These methods were tested and validated for various parameters according to ICH guidelines. The precision expressed as relative standard deviation were of 0.1311% and 0.5889% for the above two methods respectively. The proposed methods were successfully applied for the determination of olopatadine hydrochloride in pharmaceutical formulation. Results of the analysis were validated statistically and were found to be satisfactory. The proposed methods are simple, easy to apply, low-cost and require relatively inexpensive instruments.

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Keywords

Olopatadine hydrochloride, second order derivative spectroscopy, area under curve method, methanol.

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