Electrochemical bisphenol A sensor based on N-doped graphene sheets

被引：195

作者：

Fan, Haixia ^{[1
]}

Li, Yan ^{[1
]}

Wu, Dan ^{[1
]}

Ma, Hongmin ^{[1
]}

Mao, Kexia ^{[1
]}

Fan, Dawei ^{[1
]}

Du, Bin ^{[1
]}

Li, He ^{[1
]}

Wei, Qin ^{[1
]}

机构：

[1] Univ Jinan, Key Lab Chem Sensing & Anal, Shandong Univ, Sch Chem & Chem Engn, Jinan 250022, Peoples R China

来源：

ANALYTICA CHIMICA ACTA | 2012年 / 711卷

关键词：

N-doped graphene; Electrochemical sensor; Bisphenol A; Endocrine disruptor; RIVER WATER; CARBON; REDUCTION; BPA;

D O I：

10.1016/j.aca.2011.10.051

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Bisphenol A (BPA), which could disrupt endocrine system and cause cancer, has been considered as an endocrine disruptor. Therefore, it is very important and necessary to develop a sensitive and selective method for detection of BPA. Herein, nitrogen-doped graphene sheets (N-GS) and chitosan (CS) were used to prepare electrochemical BPA sensor. Compared with graphene, N-GS has favorable electron transfer ability and electrocatalytic property, which could enhance the response signal towards BPA. CS also exhibits excellent film forming ability and improves the electrochemical behavior of N-GS modified electrode. The sensor exhibits a sensitive response to BPA in the range of 1.0 x 10(-8)-1.3 x 10(-6) mol L-1 with a low detection limit of 5.0 x 10(-9) mol L-1 under the optimal conditions. Finally, this proposed sensor was successfully employed to determine BRA in water samples with satisfactory results. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：24 / 28

页数：5

共 35 条

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