信阳师范学院学报（自然科学版）2012，Vol.25Issue(2)：225-228,4.DOI:10.3969/j.issn.1003-0972.2012.02.021
对苯二酚在氧化石墨烯修饰玻碳电极上的电化学行为及测定
Determination and Electrochemical Behavior of Hydroquinone at Graphene Oxide Modified Glassy Carbon Electrode
摘要
Abstract
An electrochemical sensor was fabricated by coating graphene oxide on glassy carbon electrode. The electrochemical behavior of hydroquinone ( HQ) at the modified electrode was investigated by cyclic voltametry and different pulse voltametry. The modified electrode showed excellent electrocatalytic activity for the redox of HQ in phosphate buffer solution at pH 6.5. The experimental conditions including amount of graphene oxide, supported electrolyte, buffer solution pH and scan rate were optimized. Under the optimum conditions,the concentration of HQ showed good linear relationships with the oxidation peak current in the range of 1.0 - 100.0 fimol/L with the correlation coefficient of 0.989. The limits of detection is 0.1 junol/L ( S/N = 3 ). The method was applied to determine HQ in simulated water samples with recoveries of 97.6% ~ 103.5%.关键词
电化学传感器/氧化石墨烯/修饰电极/对苯二酚Key words
electrochemical sensor/ graphene oxide/ modified electrode/ hydroquinone分类
化学化工引用本文复制引用
刘雪,骆定法,王兰,朱萌萌..对苯二酚在氧化石墨烯修饰玻碳电极上的电化学行为及测定[J].信阳师范学院学报（自然科学版）,2012,25(2):225-228,4.基金项目
河南省高校科技创新人才项目(2010HASTIT025) （2010HASTIT025）
河南省科技创新人才项目(104100510020) （104100510020）
