A new strategy for 2,4,6-Trinitrotoluene adsorption and electrochemical reduction on poly(melamine)/graphene oxide modified electrode

被引：23
作者：
Cotchim, Suparat [1 ,2 ,3 ]
Thavarungkul, Panote [1 ,2 ,4 ]
Kanatharana, Proespichaya [1 ,2 ,3 ]
Limbut, Warakorn [1 ,2 ,5 ]
机构：
[1] Prince Songkla Univ, Trace Anal & Biosensor Res Ctr, Hat Yai 90112, Songkhla, Thailand
[2] Prince Songkla Univ, Ctr Excellence Innovat Chem, Fac Sci, Hat Yai 90112, Songkhla, Thailand
[3] Prince Songkla Univ, Dept Chem, Fac Sci, Hat Yai 90112, Songkhla, Thailand
[4] Prince Songkla Univ, Dept Phys, Fac Sci, Hat Yai 90112, Songkhla, Thailand
[5] Prince Songkla Univ, Dept Appl Sci, Fac Sci, Hat Yai 90112, Songkhla, Thailand
来源：
ELECTROCHIMICA ACTA | 2015年 / 184卷
关键词：
poly(melamine); graphene oxide; 2,4,6-Trinitrotoluene; adsorptive cathodic stripping voltammetry; LIQUID-CHROMATOGRAPHY; GRAPHENE; SENSOR; TNT; EPINEPHRINE;
D O I：
10.1016/j.electacta.2015.10.024
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
A poly(melamine)/graphene oxide (PM/GO) layer modified on a glassy carbon electrode (GCE) was used for the adsorption and electrochemical detection of 2,4,6 trinitrotoluene (TNT). The surface morphology and electrochemical behaviour of the PM/GO/GCE were characterized by scanning electron microscopy (SEM), fourier transform infrared spectroscopy (FT-IR), cyclic voltammetry (CV) and adsorptive cathodic stripping voltammetry (AdCSV). The PM/GO/GCE exhibited excellent adsorption and electrochemical reduction of TNT via the AdCSV technique with two linear ranges, 1-90 mu g L-1 and 100-1000 mu g L-1, a detection limit of 0.34 mu g L-1 and a quantitation limit of 1.14 mu g L-1. The PM/GO/GCE provided for a high sensitivity, good repeatability and selectivity. This modified electrode was successfully applied to detect TNT in soil samples with good recoveries that ranged from 93 to 99%. (C) 2015 Elsevier Ltd. All rights reserved.
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收藏
页码：102 / 110
页数：9
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