Simultaneous determination of dihydroxybenzene isomers utilizing a thiadiazole film electrode

作     者：Chang-Zhi Zhao Jun-Yu Liang Xiao-Lei Gu Hui Liu 

作者机构：College of Chemistry & Molecular EngineeringQingdao University of Science & Technology 

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

年 卷 期：2014年第25卷第2期

页      面：370-374页

核心收录：

学科分类：082803[工学-农业生物环境与能源工程] 081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 0828[工学-农业工程] 070302[理学-分析化学] 0804[工学-仪器科学与技术] 0703[理学-化学] 

主　　题：Electrochemical analysis Dihydroxybenzene isomers 2,5-Dimercapto-1,3,4-thiadiazole Elect ropolymerization 

摘      要：The present study reports a sensitive electro-analytical method for the simultaneous determination of dihydroxybenzene isomers by using a thiadiazole film electrode, which was readily prepared by electropolymerization of 2,5-dimercapto-1,3,4-thiadiazole on a glassy carbon electrode with cyclic voltammetry. The functionalized electrode has a distinguishable and sensitive response to dihydroxybenzene isomers. Under the optimized conditions, the linear stripping peak currents showed good linear relationships with hydroquinone, catechol and resorcinol at concentration ranges 0.50-120, 0.50-110 and 1.00-110 μmol/L, and the detection limits are 0.1, 0.1 and 0.3 μmol/L, respectively. The proposed method is applicable to the simultaneous determination of dihydroxybenzene isomers in real samples with the relative standard deviations of less than 5.7% and the recovery rates of 95.6%-106%. The constructed electrode is characterized by simple preparation, good selectivity, and high sensitivity advantages.