The selectivity of triethylene glycol modified glassy carbon electrode for charged and uncharged pieces

作     者：Ju-Jie Ren Na Sun Min Cui Xue-Ping Ji 

作者机构：Department of Chemistry School of Sciences Hebei University of Science and Technology Department of Medical Chemistry Hebei Medical University 

出 版 物：《Chinese Chemical Letters》 (中国化学快报（英文版）)

年 卷 期：2015年第26卷第11期

页      面：1421-1425页

核心收录：

学科分类：081704[工学-应用化学] 08[工学] 0817[工学-化学工程与技术] 

基　　金：financially supported by the Natural Science Foundation of Hebei Province of China(No.B2010000844) Research Foundation of Education Department of Hebei Province of China(No.ZH2012078) 

主　　题：Triethylene glycolGlassy carbon electrodeDopamineAscorbic acidElectrochemical modification 

摘      要：A triethylene glycol modified glassy carbon electrode （TEG-GCE） was fabricated by a controlled- potential electrolysis procedure. The performance of the film on the modified electrode surface was investigated by cyclic voltammetry with different probes. It was firstly found that while neutral pieces could penetrate the TEG film on the GCE surface, the ionic pieces, whatever it is anion or cation, was blocked by the film. This property was successfully used for determining dopamine （DA） in the presence of ascorbic acid （AA） with differential pulse voltammetry （DPV）.