一种新的检测芦丁含量的方法

A New Method of Test the Concentration of Rutin

通过对芦丁在酸性体系中的电化学实验,提出了一种用玻碳电极检测芦丁含量的新型的电化学方法,其浓度的线性检测范围为3.28×10^(-7)M到3.28×10^(-5)M,检测极限可达到2.51×10^(-8)M,并且通过对几种药品含量的测试,效果良好,此方法的特点是用量省、操作简单、外来物质的干扰少。

An adsorptive process of rutin on the glassy carbon electrode is observed, and the electrochemical method for determining rutin is presented. In a medium of 0.1M acetate buffer solutions (pH=4.46), a very sen- sitive polargraphic adsorptive wave is observed by using a differential pulse voltammetry at about 0.29V(vs. Ag/ AgCl). The linear relationship between the peak current and the concentration of rutin exists in a range from 3.28×10^(-7) M to 3.28×10^(-5) M. The detection limit of rutin is down to 2.51×10^(-8) M. This method has been ap- plied to determine rutin in several samples of Chinese medicines. The results are satisfactory.