期刊论文

中文

化学试剂

0258-3283

2013

35

9

815-819,822

10.13822/j.cnki.hxsj.2013.09.010

湖南省科技厅基金项目（2011FJ3037,2012-FJ2002） 湖南省教育厅课题（B21018） 湖南省重点学科基金资助项目.

本校为其他机构

研制了一种新型的石墨烯/聚噻吩复合膜修饰玻碳电极(GR/PTh/GCE),在0.100 mol/L的柠檬酸-磷酸氢二钠缓冲溶液中(pH 7.0),利用循环伏安法(CV)研究了该修饰电极对邻苯二酚(CC)和对苯二酚(HQ)的电催化作用,同时利用差分脉冲溶出伏安法(DPSV)测定邻苯二酚和对苯二酚的含量,线性范围为1.00×10~(-6) ~4.00×10~(-4) mol/L,检出限为1.50×10~(-7) mol/L,并应用于模拟废水中邻苯二酚和对苯二酚的测定,回收率分别为98.0%- 103.0%,96.0% ~ 104.0%,效果良好。

A new-type glassy carbon electrode modified with graphene and polythiophene has been obtained. In a buffer so- lution （0. 100 mol/L pH 7.0 citric acid-disodium hydrogen phosphate） ,the eletrocatalysis to catechol and hydroquinone by cyclic voltammeter has been investigated. The content of catecho] and hydroquinone can be detected by differential pulse stripping voltammetry, with the linear range of 1.00 × 10^-6- 4.00 × 10^-4 mol/L and the limit of detection of 1.50 × 10^-7 mol/L. This method has been applied to detect the content of the ca...