A VALIDATED STABILITY INDICATING ULTRA-PERFORMANCE LIQUID CHROMATOGRAPHIC METHOD FOR SIMULTANEOUS DETERMINATION OF METFORMIN HYDROCHLORIDE AND EMPAGLIFLOZIN IN BULK DRUG AND TABLET DOSAGE FORM
DOI:
https://doi.org/10.22159/ijap.2017v9i3.17441Keywords:
Empagliflozin, Metformin hydrochloride, Reversed-phase ultra-performance liquid chromatography, ValidationAbstract
Objective: To develop a simple, precise, accurate, method was developed and validated for analysis of metformin hydrochloride (MET) and empagliflozin in (EMPA) in bulk and tablet dosage form.
Methods: The method used a reverse phase column, dikma C18 (50×2.1 mm, 1.8 μ), a mobile phase comprising of phosphate buffer (pH-3): methanol (30:70 v/v) flow rate of 1.0 ml/min and a detection wavelength of 240 nm using a photodiode array detector. The proposed method was validated for various parameters like linearity, precision, accuracy, robustness, ruggedness, detection, quantification limits, stability studies, formulation analysis as per International Conference on Harmonization (ICH) guidelines.
Results: The retention time was found to be 1.189 min and 1.712 min for MET and EMPA respectively. The proposed method was found to be having linearity in the concentration range of 500-2500 μg/ml for MET (r2=0.989) and 5-25 μg/ml for EMPA (r2=0.994), respectively. The mean % recoveries obtained were found to be 100.35-100.48% for MET and 99.80-101.30% for EMPA respectively. Stress testing which covered acid, base, peroxide, photolytic and thermal degradation was performed on under test to prove the specificity of the method and the degradation was achieved. The developed method has been statistically validated according to International Conference on Harmonization (ICH) guidelines.
Conclusion: Thus, the proposed method can be successfully applied for the stability indicating the simultaneous determination of MET and EMPA in bulk and combined tablet dosage form and in the routine quality control analysis.
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