HPLC METHOD DEVELOPMENT AND VALIDATION FOR AZITHRO-MYCIN IN ORAL SUSPENSION
Abstract
Introduction: Azithro-mycin a semi-synthetic, azalide congener of erythro-mycin indicated in the treatment of respiratory tract infections. Various methods available for determination of Azithro-mycin, but HPLC are most versatile one. Objective: The present study is based on the development and validation of a rapid, simple high performance liquid chromatography (HPLC) method equipped with UV detector for quantitative analysis of Azithro-mycin (AZN) in suspension. Material and methods: The Method was performed by using Hypersil BDS-C18 (250 mm × 4.6 mm i.d.) column MS-II, with an isocratic mobile phase of methanol, acetonitrile and phosphate buffer pH 8 (60:30:10; v/v) with run time 15 minutes. The determinations were performed at a flow rate of 1.0ml/min, and UV detector set at 212 nm. Result and Discussion: The method was found to be specific with relative standard deviation (RSD) less than 2.09%. The method showed accuracy with RSD less than 1.34% and precision in repeatability with RSD less than 1.42%. The method was found to be linear over a wide range of concentration from 1.0 to 50.0 μg/mL (R2 = .995). Limit of detection and limit of quantification were found to be 14.40 ng/mL and 43.66 ng/mL respectively. Conclusion: It was advantageous to use UV detector over other methods employing electrochemical, photodiode array etc. as the detector, because of cheap and easy availability. The developed method fulfilled all validation parameters as per ICH and can be successfully applied to quantify percent drug content in marketed oral Azithro-mycin suspension.
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