STABILITY INDICATING UPLC METHOD FOR ESTIMATION OF METFORMIN HYDROCHLORIDE AND NATEGLINIDE SIMULTANEOUSLY IN THE PRESENCE OF STRESS DEGRADATION PRODUCTS
Journal: Indian Drugs (Vol.57, No. 05)Publication Date: 2020-05-28
Authors : Prameela Rani A.; Madhavi S.; Tirumaleswara Rao B.; Sudheer Reddy CH.;
Page : 56-64
Keywords : For Correspondence E-mail: madhavitirumalesh@gmail.com;
Abstract
A novel Ultra Performance Liquid Chromatography (UPLC) method was developed and validated for the simultaneous determination of antidiabetic drugs metformin hydrochloride and nateglinide. The method was developed using a Waters ACQUITY UPLC SB C18 (100 × 2.1 mm, 1.8 μm) column. The mobile phase consisting of 0.01 % potassium dihydrogen phosphate buffer (pH 5.8): acetonitrile (50: 50 V/V) was used throughout the analysis. The flow rate was 0.3 mL/min, the injection volume was 1.0 μL, column temperature was 30 0C, run time 3 min and detection was carried at 238 nm using a TUV detector. The retention times of metformin hydrochloride and nateglinide were found to be 1.28 1.71 min,respectively. Metformin hydrochloride and nateglinide were found to be linear over the concentration range of 125-750 and 15-90 μg/mL. The limit of detection and the limit of quantification for metformin hydrochloride were found to be 0.22 and 0.68 μg/mL, respectively, and, for nateglinide, 0.02 and 0.6 μg/mL,respectively. Developed method was validated as per ICH guidelines. The specificity of the method was confirmed by forced degradation study. The suggested method is suitable for determination of metformin hydrochloride and nateglinide in bulk and pharmaceutical dosage forms.
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