丹皮酚在聚苏丹红Ⅲ/GC电极上的电化学行为及测定  

Electrochemical Behavior and Content Determination of Paeonol at Poly SudanⅢ Modified Electrode

作　　者：郑艳洁[1] 刘爱林[1] 雷云[1] 林新华[1] 

机构地区：[1]福建医科大学药学院药物分析系,福建福州350004

出　　处：《电化学》2013年第4期383-387,共5页Journal of Electrochemistry

基　　金：国家863计划项目(No.2012AA022604);国家自然科学基金项目(No.81171668);福建省自然科学基金项目(No.2010J06011);福建省高校产学合作重大项目(No.2010Y4003);福建医科大学重大科研项目(No.09ZD013)资助

摘　　要：应用交流阻抗法和循环伏安法表征聚苏丹红Ⅲ/GC电极,并研究丹皮酚在该聚合物电极上的电化学行为.实验表明,聚苏丹红Ⅲ/GC电极对丹皮酚具有良好的电催化作用,在3.0×10^-7-2.2×10^-5mol·L^-1浓度范围内,其差示脉冲伏安峰电流随浓度变化呈良好的线性关系,检测限为5.0×10^-8mol·L^-1.该法可用于实际样品中丹皮酚的测定,结果令人满意.The poly SudanⅢ modified electrode was characterized by electrochemical impedance spectroscopy（EIS） and cyclic voltammetry （CV）, while the electrochemical behavior ofpaeonol was studied by cyclic voltammetry（CV）. The result shows that the poly Sudan Ⅲ modified electrode exhibits excellent electrocatalytic effect on the oxidation of paeonol. The peak currents of differential pulse voltammetry are linear to the paeonol concentrations over the range of 3.0 × 10^-7 - 2.2 × 10^-5 mol ·L^-1. The detection limit has been estimated to be 5.0 × 10^-8 mol·L^-1. This method can be used for determination of paeonol content in real sample with satisfactory results.

关 键 词：丹皮酚 苏丹红Ⅲ 修饰电极 电化学行为 

分 类 号：O657.1[理学—分析化学]