Determination of As3+ Based on Nanoporous Gold by Square Wave Anodic Stripping Voltammetry

被引：4

作者：

Wang, Suiping ^{[1
,2
]}

Wang, Xu ^{[1
]}

Zhong, Jinfeng ^{[1
]}

Zhai, Shaolan ^{[1
]}

Li, Yafei ^{[1
]}

Lin, Lizhong ^{[3
]}

Liu, Yejia ^{[3
]}

Mei, Xiaodi ^{[3
]}

Ding, Yanjun ^{[4
]}

机构：

[1] Xiangtan Univ, Hunan Coll, Coll Chem Engn, Key Lab Heavy Met Pollut Control, Xiangtan 411105, Peoples R China

[2] Hunan Univ Arts & Sci, Collaborat Innovat Ctr Efficient & Hlth Prod Fish, Coll Life & Environm Sci, Changde 415000, Peoples R China

[3] Hunan Jinjian Cereals Ind CO Ltd, Changde 415000, Peoples R China

[4] Cent S Univ, Sch Basic Med Sci, Dept Forens Sci, Changsha 410013, Hunan, Peoples R China

来源：

INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE | 2017年 / 12卷 / 09期

基金：

中国国家自然科学基金;

关键词：

nanoporous gold; As3+; electrochemical sensor; AU NANOPARTICLES; ELECTRODE; SPECIATION; GRAPHENE; SENSOR; REDUCTION; METALS;

D O I：

10.20964/2017.09.47

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

In this paper, the preparation of nanoporous gold (NPG) was established by the dynamic bubble template electrodeposition. Taking advantages of the large specific surface area and good catalytic activity of the NPG, a method of determining trace As3+ by the NPG modified electrode was developed. The deposition time, enrichment time, supporting electrolyte and pH was optimized. Under the optimized experimental conditions, a good linearity was obtained in the concentration range of 0.001 to 4 mu g/mL and the detection limit is 0.001 mu g/mL. The linear equation is y=14.6753x-0.0132 (r=0.9992). The reproducibility was investigated with a RSD of 3.11% (n=6). The repeatability was investigated with a RSD of 2.41% for six measurements. The developed As3+ sensor based on NPG has advantages such as simple fabrication, fast response, low detection limit and good reproducibility.

引用

页码：8345 / 8356

页数：12

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