Electrochemical Determination of Trace Copper ions in Drinking Water Source

Authors

Jing-ji PENG, State Key Laboratory of Marine Environmental Science, College of the Environment and Ecology,Xiamen University, Xiamen 361102, Fujian, China;
Hong ZHENG, State Key Laboratory of Marine Environmental Science, College of the Environment and Ecology,Xiamen University, Xiamen 361102, Fujian, China;
Yi-song ZOU, State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry & Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, China;
Guo-kun LIU, State Key Laboratory of Marine Environmental Science, College of the Environment and Ecology,Xiamen University, Xiamen 361102, Fujian, China;Follow
Dong-xing YUAN, State Key Laboratory of Marine Environmental Science, College of the Environment and Ecology,Xiamen University, Xiamen 361102, Fujian, China;Follow

Corresponding Author

Guo-kun LIU(guokunliu@xmu.edu.cn);
Dong-xing YUAN(yuandx@xmu.edu.cn)

Abstract

Aiming at the on-site and quick safety evaluation of the dissolved trace copper ions (Cu²⁺) in drinking water source, an electrochemical detection platform was developed on the basis of the square wave anodic stripping voltammetry using the gold nanoparticles (Au NPs) modified glassy carbon electrode, where Au NPs were deposited via electrochemical cyclic voltammetry. The proposed method displayed the limit of detection as low as 1.3 μg·L^-1 in the linear range of 2 ~ 50 μg·L^-1. The proposed method was applied to the determination of Cu²⁺ in the midstream of Minjiang River, one of the most important drinking water sources in Fujian province, China. The results were nearly identical to that obtained by the standard method quantitatively with a deviation less than 20%. Furthermore, the proposed electrochemical method is simple, economical and fast, and has the potential for the field determination of trace dissolved Cu²⁺ in various drinking water sources facilitated with the portable potentiostat.

Graphical Abstract

Keywords

electrochemical determination, square wave anodic stripping voltammetry, gold nanoparticles, trace copper, drinking water

DOI Link

https://doi.org/10.13208/j.electrochem.180418

Publication Date

2019-12-28

Online Available Date

2018-06-27

Revised Date

2018-05-02

Received Date

2018-04-18

Recommended Citation

Jing-ji PENG, Hong ZHENG, Yi-song ZOU, Guo-kun LIU, Dong-xing YUAN. Electrochemical Determination of Trace Copper ions in Drinking Water Source[J]. Journal of Electrochemistry, 2019 , 25(6): 699-707.
DOI: 10.13208/j.electrochem.180418
Available at: https://jelectrochem.xmu.edu.cn/journal/vol25/iss6/7

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