[Chiral separation of 3-phenyllactic acid by capillary electrophoresis]

Various factors affecting the chiral resolution of 3-phenyllactic acid by capillary zone electrophoresis such as the type of cyclodextrin, concentration of the chiral selector, buffer pH, voltage, and temperature were studied and optimized. Using 30 mmol/L hydroxypropyl-beta-cyclodextrin as the chiral selector, and 0.1 mol/L phosphate solution (pH 5.5) as the running buffer, the baseline separation of 3-phenyllactic acid enantiomers was achieved with a resolution factor of 1.51. The separation voltage was 26 kV and the temperature was 25 degrees C.