Analysis of Three Compounds in Flos Farfarae by Capillary Electrophoresis with Large-Volume Sample Stacking

Figure 3

Electropherograms of sample solution by LVSS method: (1) rutin; (2) hyperoside; (3) chlorogenic acid. CE conditions: 40 mM NaH₂P0₄-40 mM Borax-30% v/v methanol (pH 9.0); operating voltage: 20 kV (+)-(−), the sample hydrodynamic injection of 4 s at 0.5 psi, water injection time: 40 s; detection wavelength: 364 nm.