文献类型：期刊文献

英文题名：An electrochemical sensor for honokiol based on a glassy carbon electrode modified with MoS2/graphene nanohybrid film

作者：Zhao, Xiaojuan[1,2];Xia, Xiaohong[1];Yu, Shengjiao[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：2014

卷号：6

期号：23

起止页码：9375

外文期刊名：ANALYTICAL METHODS

收录：;EI(收录号：20144600179833);Scopus(收录号：2-s2.0-84908569422);WOS:【SCI-EXPANDED(收录号:WOS:000344964700025)】；

基金：This work is financially supported by the National Nature Science Foundation of China (no. 51372106).

语种：英文

外文关键词：Carbon - Cyclic voltammetry - Glass - Glass membrane electrodes - High resolution transmission electron microscopy - Layered semiconductors - Molybdenum compounds - Nanostructured materials - Scanning electron microscopy - X ray photoelectron spectroscopy

摘要：A novel honokiol electrochemical sensor based on a MoS2/graphene nanohybrid has been introduced in this work. The hybrid was characterized by X-ray diffraction, transmission electron microscopy, scanning electron microscopy and X-ray photoelectron spectroscopy. The electrochemical behavior of honokiol on the MoS2/graphene modified glassy carbon electrode was investigated in a phosphate buffer solution of pH 5.5 by cyclic voltammetry and differential pulse voltammetry. Compared with bare glassy carbon electrode, the proposed electrode showed improved analytical performance characteristics in the catalytic redox of honokiol. Under the optimal conditions, the modified electrode showed a linear voltammetric response to the honokiol in a concentration range from 1.0 x 10(-9) to 2.5 x 10(-6) mol L-1, and the detection limit (S/N = 3) was estimated to be 6.2 x 10(-10) mol L-1. Moreover, the sensor also exhibited good reproducibility and stability, and could be used for the detection of honokiol in pharmaceutical samples.