中文摘要：

采用电化学聚合法制备了聚刚果红膜修饰电极,应用循环伏安法研究芦丁在该修饰电极上的电化学行为。实验表明,聚刚果红修饰电极对芦丁具有良好的电催化作用,在5.0×10-8～8.0×10-6 mol/L浓度范围内,芦丁的差示脉冲伏安峰电流与其浓度呈良好的线性关系,检测限为2.0×10-8 mol/L。该法可用于槐米中芦丁的直接测定。

英文摘要：

A poly （Congo red） film modified electrode was prepared by electropolymerization. The electrochemical behavior of rutin at this modified electrode was studied by cyclic vohammetry（CV）. The result shows that the poly（Congo red） modified electrode exhibits excellent electrochemical catalytic effect for rutin. The peak currents of differential pulse vohammetry are linear to the rutin concentrations over the range of 5.0× 10-8-8. 0× 10-6 mol/L. The detection limit is estimated to be 2.0× 10-8 mol/L. This method can be used for the direct determination of rutin in Flos Sophorae buds with satisfactory results.