Quantitative Determination of Lercanidipine Enantiomers in Commercial Formulations by Capillary Electrophoresis

Figure 5

Typical electropherograms obtained following the analysis of Blank; a standard solution containing racemic LER and commercial tablets. Experimental conditions: fused-silica uncoated capillary 50 μm id and 50.0 cm effective length, +25 kV, 200 mmol/L sodium acetate buffer pH 4.0 (containing 10 mmol/L of TM-β-CD), and 15°C, 237 nm; injection: 10 seconds (at a pressure of 0.5 psi).