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
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.
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
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