Electrochemical determination of bisphenol A with a glassy carbon electrode modified with gold nanodendrites

被引：32
作者：
Chen, Wan-Yi [1 ]
Mei, Li-Ping [1 ]
Feng, Jiu-Ju [1 ]
Yuan, Tao [1 ]
Wang, Ai-Jun [1 ]
Yu, Haiying [1 ]
机构：
[1] Zhejiang Normal Univ, Coll Geog & Environm Sci, Coll Chem & Life Sci, Jinhua 321004, Peoples R China
来源：
MICROCHIMICA ACTA | 2015年 / 182卷 / 3-4期
关键词：
Gold nanodendrites; Electroanalysis; L-Asparagine; Bisphenol A; SENSITIVE DETERMINATION; NANOPARTICLES; BIOSENSOR; SENSOR;
D O I：
10.1007/s00604-014-1377-4
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Three-dimensional gold nanodendrites with (111)-oriented growth were fabricated on a glassy carbon electrode by one-step electrodeposition of AuCl4 (-) in the presence of L-asparagine. The gold nanodendrites were functionalized with 4-mercaptobenzoic acid (4-MBA), which showed the improved catalytic performance for sensitive and selective determination of bisphenol A (BPA) by differential pulse voltammetry. The oxidation peak currents of BPA at 514 mV showed linear responses to BPA concentrations from 0.05 to 55.0 mu M (R (2) = 0.995), with the detection limit of 1.2 nM (S/N = 3). The modified electrode was extended for trace detection of BPA in (spiked) real samples with satisfied results.
引用
收藏
页码：703 / 709
页数：7
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