文献类型：期刊文献

英文题名：A sensor based on graphitic mesoporous carbon/ionic liquids composite film for simultaneous determination of hydroquinone and catechol

作者：Hong, Zhouqin;Zhou, Lihui;Li, Jinxia[1];Tang, Jing

机构：[1]E China Univ Sci & Technol, Key Lab Adv Mat, Shanghai 200237, Peoples R China; E China Univ Sci & Technol, Dept Chem, Shanghai 200237, Peoples R China

年份：2013

卷号：109

起止页码：671

外文期刊名：ELECTROCHIMICA ACTA

收录：;EI(收录号：20133916791385);WOS:【SCI-EXPANDED(收录号:WOS:000328006300092)】；

基金：The authors gratefully acknowledge the financial support by the National Natural Science Foundation of China (Project Nos. 21176066). The project was supported by the Research Center of Analysis and Test of East China University of Science and Technology.

语种：英文

外文关键词：Graphitic mesoporous carbon; Ionic liquid; Hydroquinone; Catechol

摘要：The graphitic mesoporous carbon (GMC) was synthesized by using SBA-15 as template and ionic liquid as a novel carbon source with the assistance of ferric nitrate. A homogeneous and stable conducting film could be formed with graphitic mesoporous carbon/1-butyl-3-methylimidazolium hexafluorophosphate (GMC/BMIMPF6) composite on the electrode surface, which was particularly useful for preparing modified electrode to determinate the hydroquinone (HQ) and catechol (CC). The cyclic voltammetry (CV) of GMC/BMIMPF6/GC electrode showed two couples of independent well-defined quasi-reversible redox peaks for HQ and CC. The peak current value of cathode was linear with the concentration of HQ in the range of 1 x 10(-7) to 5.0 x 10(-5) mol L-1 in the presence of 5 x 10(-5) mol L-1 CC and with the concentration of CC in the range of 1 x 10(-7) to 5.0 x 10(-5) mol L-1 in the presence of 5 x 10(-5) mol L-1 HQ with detection limits (S/N = 3) of 5 x 10(-8) mol L-1 (HQ) and 6 x 10(-8) mol L-1 (CC), respectively. (C) 2013 Elsevier Ltd. All rights reserved.