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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

Publication Date

2014-08-28

Online Available Date

2014-04-02

Revised Date

2014-03-26

Received Date

2014-01-14

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