Electrochemical determination of sulfide in fruits using alizarin-reduced graphene oxide nanosheets modified electrode

被引：43
|
作者：
Cao, Xiaodong [1 ,2 ]
Xu, Houchuan [1 ]
Ding, Shun [1 ]
Ye, Yongkang [1 ,2 ]
Ge, Xiaoguang [3 ]
Yu, Li [4 ]
机构：
[1] Hefei Univ Technol, Sch Biotechnol & Food Engn, Hefei 230009, Peoples R China
[2] Hefei Univ Technol, Wanjiang Inst Poultry Technol, Xuancheng 242000, Peoples R China
[3] Hefei Univ Technol, Sch Resource & Environm Engn, Hefei 230009, Peoples R China
[4] Anhui Acad Agr Sci, Inst Agroprod Proc, Hefei 230031, Peoples R China
来源：
FOOD CHEMISTRY | 2016年 / 194卷
基金：
中国国家自然科学基金;
关键词：
Sulfide; Reduced graphene oxide nanosheets; Alizarin; Electrochemical detection; SCREEN-PRINTED ELECTRODE; GLASSY-CARBON ELECTRODE; HYDROGEN-SULFIDE; ELECTROCATALYTIC OXIDATION; AMPEROMETRIC DETECTION; SELECTIVE DETECTION; SENSOR; H2S; NANOCOMPOSITES; REDUCTION;
D O I：
10.1016/j.foodchem.2015.08.134
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
This study presents a new approach for rapid detection of sulfide using a glassy carbon electrode (GCE) modified with alizarin (Az) and reduced graphene oxide (rGO) nanosheets. The fabricate Az-rGO/GCE sensor shows a notable electrocatalytic activity to sulfide oxidation. The currents of anodic peak centered at +465 mV in 0.2 M pH 7.0 phosphate buffer were related linearly to the concentrations of sulfide, based on the cyclic voltammetric studies. The linear range was 0.002-3.28 mM, and the detection limit was 1 mu M. The proposed method was applied in sulfide determination of hydrogen sulfide pretreated fruits, and the method was also verified with recovery studies. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1224 / 1229
页数：6
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