High Sensitive Detection of Cd(II) and Pb(II) Based on Antimony-Film Covered Pencil Core Electrodes

Authors

Shan CHEN, Key Laboratory of Analysis and Detection Technology for Food Safety, Ministry of Education, Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety, College of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou 350002, China;
Zhao-Yan ZHENG, Key Laboratory of Analysis and Detection Technology for Food Safety, Ministry of Education, Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety, College of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou 350002, China;
Yi-Min FANG, Key Laboratory of Analysis and Detection Technology for Food Safety, Ministry of Education, Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety, College of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou 350002, China;
Li-Qing ZHENG, Key Laboratory of Analysis and Detection Technology for Food Safety, Ministry of Education, Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety, College of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou 350002, China;
Jian-Jun SUN, Key Laboratory of Analysis and Detection Technology for Food Safety, Ministry of Education, Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety, College of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou 350002, China;Follow

Corresponding Author

Jian-Jun SUN(jjsun@fzu.edu.cn)

Abstract

In this paper, a pencil core was used as the substrate for an antimony-film electrode for simultaneous detection of Cd(II) and Pb(II) by square-wave anodic stripping voltammetry (SWASV). With the deposition time of 180 s, the low limit of detection (LOD) for the electrode was determined to be 0.075 ?g?L-1 for Cd(II), while 0.13 ?g?L-1 for Pb(II) with good reproducibility in low pH solutions (pH = 2). The results show a much lower LOD than that of bismuth-film pencil core electrode. Finally, this antimony-film electrode was successfully applied to determine Cd(II) and Pb(II) in tap water.

Graphical Abstract

Keywords

antimony film electrodes, anodic stripping voltammetry, heavy metal ions, pencil core electrode

DOI Link

https://doi.org/10.13208/j.electrochem.131169

Publication Date

2014-08-28

Online Available Date

2014-04-02

Revised Date

2014-03-26

Received Date

2014-01-14

Recommended Citation

Shan CHEN, Zhao-Yan ZHENG, Yi-Min FANG, Li-Qing ZHENG, Jian-Jun SUN. High Sensitive Detection of Cd(II) and Pb(II) Based on Antimony-Film Covered Pencil Core Electrodes[J]. Journal of Electrochemistry, 2014 , 20(4): 370-376.
DOI: 10.13208/j.electrochem.131169
Available at: https://jelectrochem.xmu.edu.cn/journal/vol20/iss4/12