Assembling gold nanorods on a poly-cysteine modified glassy carbon electrode strongly enhance the electrochemical reponse to tetrabromobisphenol A

被引：27

作者：

Wang, Yanying ^{[1
,2
]}

Liu, Guishen ^{[3
]}

Hou, Xiaodong ^{[3
]}

Huang, Yina ^{[3
]}

Li, Chunya ^{[2
]}

Wu, Kangbing ^{[1
]}

机构：

[1] Huazhong Univ Sci & Technol, Sch Chem & Chem Engn, Key Lab Large Format Battery Mat & Syst, Minist Educ, Wuhan 430074, Peoples R China

[2] South Cent Univ Nationalities, Coll Chem & Mat Sci, State Ethn Affairs Commiss, Key Lab Analyt Chem, Wuhan 430074, Peoples R China

[3] Chaozhou Qual & Measurement Supervis & Inspect In, Chaozhou 521011, Peoples R China

来源：

MICROCHIMICA ACTA | 2016年 / 183卷 / 02期

关键词：

Self-assembly; Cyclic voltammetry; Electron transfer; Scanning electron microscopy; Transmission electron microscopy; Hexacyanoferrate; Flame retardant; BROMINATED FLAME RETARDANTS; BISPHENOL-A; SENSOR; NANOPARTICLES; FILM; OXIDATION;

D O I：

10.1007/s00604-015-1708-0

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Cysteine (Cys) was electrochemically deposited on a glassy carbon electrode (GCE) by cyclic voltammetry. The poly-Cys modified electrode was placed in a solution of gold nanorods (GNRs) to induced self-assembly of the GNRs. The GNRs/poly-Cys/GCEs were characterized by scanning electron microscopy and electrochemical impedance spectroscopy. A voltammetric study on tetrabromobisphenol A (TBBPA) with this GCE showed the current response to be enhanced by a factor of 11 compared to a non-modified GCE. Based on these findings, a square wave voltammetric assay was worked out. Under optimized conditions, a linear relationship between the oxidation peak current and TBBPA is found for the 10 nM to 10 mu M concentration range. The detection limit is 3.2 nM (at an S/N ratio of 3). The electrode was successfully applied to the determination of TBBPA in spiked tap water and lake water samples.

引用

页码：689 / 696

页数：8

共 35 条

[1] An overview of commercially used brominated flame retardants, their applications, their use patterns in different countries/regions and possible modes of release [J].