分析化学2009，Vol.37Issue(7)：1045-1048,4.
水杨酸分子印迹膜电化学传感器的制备
Preparation of Electrochemical Sensor for Salicylic Acid Based on Molecular Imprinted Film
摘要
Abstract
Molecular imprinted film modified glassy carbon electrode was prepared by electrochemical polymerization of pyrrole with the cyclic voltammetry in the presence of template molecular, salicylic acid. The template molecules were removed from the modified electrode surface by over-oxidized at 1.3V in the solution of 0.2 mol/L Na2HPO4 for 10 min. The modified electrodes can effectively promote electrochemical oxidation process of salicylic acid in the surface of electrode and avoid interference of structural similar substance such as benzoic acid. Cyclic voltammetry was employed in the electrochemical measurements. The experimental results show that the optimum acidity of background solution is pH 6.86 and the optimum incubation is 10 min. The linear response curve was obtained from 1.0×10-6 mol/L to 2.0×10-3 mol/L, with the detection limit of 8.0×10-7 mol/L. The imprinted electrode has been applied to the analysis of salicylic acid in the simulated samples with recovery rates ranging from 94.6% to 103.4%.关键词
水杨酸/分子印迹/电聚合吡咯/修饰电极/传感器Key words
Salicylic acid/molecular imprinted polymer/electrochemical polymerization of pyrrole/modified-electrode/sensor分类
化学化工引用本文复制引用
谢成根,李淮芬,谢春艳,周汉坤..水杨酸分子印迹膜电化学传感器的制备[J].分析化学,2009,37(7):1045-1048,4.基金项目
本文系国家自然科学基金(No. 20875070)和安徽省高校优秀中青年骨干教师资助计划项目 （No. 20875070）
