芦丁在纳米金修饰玻碳电极上的电化学行为及其测定  

Electrochemical behavior of rutin at a gold nanoparticles modified glassy carbon electrode and its determination

作　　者：张亚[1] 杜芳艳[1] 严彪[1] 张永杰[1] 

机构地区：[1]榆林学院化学与化工学院,榆林719000

出　　处：《分析试验室》2012年第1期68-71,共4页Chinese Journal of Analysis Laboratory

基　　金：陕西省科技厅(2010JM2017);陕西省教育厅(2010JK925);榆林市科技局(Gg09-2-05);榆林学院(10GK02)项目资助

摘　　要：采用循环伏安法将纳米金电沉积于玻碳电极表面,制备了纳米金修饰玻碳电极(NG/GCE)。在pH 3.29的Britton-Robinson(B-R)缓冲溶液中,用循环伏安法研究了芦丁在NG/GCE上的电化学行为。结果表明,NG/GCE对芦丁的氧化还原反应有良好的电催化作用。用方波伏安法测得芦丁的还原峰电流与其浓度在2.0×10-8～2.0×10-6 mol/L范围内呈线性关系,检出限为1.0×10-8mol/L(S/N=3)。A gold nanoparticles modified glassy carbon electrode（NG/GCE） was prepared by electrodepositing.The electrochemical behavior of rutin at the modified electrode was investigated in pH 3.29 Britton-Robinson（B-R） buffer solution by cyclic voltammetry.The NG/GCE possessed an excellent electrocatalytic activity for the redox of rutin.On square wave voltammetric curves,a linear dependence of the reduction current versus on the rutin concentration was obtained in the range of 2.0×10-8 ～ 2.0×10-6 mol·L-1（r = 0.9998）,with a detection limit of 1.0×10-8 mol·L-1（S/N = 3）.A novel method for the determination of rutin in tablets has been established.

关 键 词：纳米金 修饰电极 芦丁 伏安法 

分 类 号：O657.1[理学—分析化学]