Figure 1 from: Mohamed AA, Hamed HE, Rahi FA (2024) Formulation, characterization and evaluation of vildagliptin and metformin combined tablets. Pharmacia 71: 1-6. https://doi.org/10.3897/pharmacia.71.e117712

Figure 1 HPLC of MET and VD at a retention time of 2.194 and 3.945 min, respectively, for 500 µg/ml and 50 µg/ml. Conditions: a CN (5 μm, 25 cm × 4.6 mm) column and 25% Acetonitrile: 75% Buffer pH (3.0) as the mobile phase were detected at 254 and 203 nm.