Abstract
Vildagliptin (VD) and Dapagliflozin (DP) were determined simultaneously by RP-HPLC using an ultraviolet (UV) detector, a Hypersil Gold C18 (250 × 4.6 mm) column, 5 µm and a mobile phase of acetonitrile: water (adjusted with O-Phosphoric acid to pH 3) in ratio 40: 60% v/v. The estimation wavelength was chosen to be 213 nm. VD and DP were shown to have retention times of 2.9 and 8.3 minutes, respectively. Q2 (R1) ICH guidelines were followed during the validation process. VD and DP correlation coefficient R2 values are 0.9993 and 0.999, respectively. While DP’s linearity range is 1 to 6 µg/mL, VD’s is 10 to 60 µg/mL. The precision and accuracy studies show %relative standard deviation (%RSD) below 2%. Recovery% was assessed to meet the ICH Q2 (R1) guidelines criteria. The presented research on forced degradation showed stability indicating studies. The findings also demonstrated that the suggested method is suitable for determining VD and DP precisely and accurately.
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