文献类型：期刊文献

英文题名：Fabrication of a CuS/graphene nanocomposite modified electrode and its application for electrochemical determination of esculetin

作者：Zhao, Xiaojuan[1,2];Zhang, Fengyuan[1];Lu, Daban[1];Du, Yongling[1];Ye, Weichun[1];Wang, Chunming[1]

第一作者：Zhao, Xiaojuan;赵晓娟

通信作者：Wang, CM[1]

机构：[1]Lanzhou Univ, Sch Chem & Chem Engn, Lanzhou 730000, Peoples R China;[2]Gansu Coll Tradit Chinese Med, Lanzhou 730000, Peoples R China

第一机构：Lanzhou Univ, Sch Chem & Chem Engn, Lanzhou 730000, Peoples R China

通信机构：[1]corresponding author), Lanzhou Univ, Sch Chem & Chem Engn, Lanzhou 730000, Peoples R China.

年份：2013

卷号：5

期号：16

起止页码：3992

外文期刊名：ANALYTICAL METHODS

收录：;EI(收录号：20135117105981);Scopus(收录号：2-s2.0-84890259462);WOS:【SCI-EXPANDED(收录号:WOS:000323226800032)】；

基金：This work is financially supported by the National Nature Science Foundation of China (no. 51072073).

语种：英文

外文关键词：Glass membrane electrodes - Chemical detection - Cyclic voltammetry - Nanocomposites

摘要：In this paper, a CuS/graphene nanocomposite modified glassy carbon electrode (GCE) was successfully constructed and used for determination of esculetin. The electrochemical behavior of esculetin was studied by cyclic voltammetry (CV) and differential pulse voltammetry (DPV). The results indicated that the synergistic effect between CuS nanoparticles (NPs) and graphene enhanced the electrochemical response of esculetin. Under optimal conditions, the DPV peak current increased linearly with the esculetin concentration in the range from 1.0 x 10(-7) to 1.0 x 10(-4) mol L-1, and the detection limit (S/N = 3) was 5.8 x 10(-8) mol L-1. Furthermore, a good selectivity with high sensitivity was obtained for the determination of esculetin in real samples.