Fig. 3

Typical electropherograms of a laboratory-prepared tablet solutions of 500 µg. mL⁻¹ MET, 12.5 µg. mL⁻¹ EMP, 2.5 µg. mL⁻¹ LIN,( Mix I) b Empagliform® tablets containing 500 µg. mL⁻¹ MET and 12.5 µg. mL⁻¹ EMP,(Mix II) c Gliptalina® tablets containing 500 µg. mL⁻¹ MET and 2.5 µg. mL⁻¹ LIN,(Mix III) d Glyxambi® tablets containing 50 µg. mL⁻¹EMP and 25 µg. mL⁻¹ LIN ( Mix IV) measured at 230 nm