Simultaneous detection of trace Cd(II) and Pb(II) by differential pulse anodic stripping voltammetry using a bismuth oxycarbide/nafion electrode

被引：73

作者：

Zhang, Yaxiao ^{[1
]}

Li, Chao ^{[1
]}

Su, Yingchun ^{[1
]}

Mu, Wei ^{[1
]}

Han, Xiaojun ^{[1
]}

机构：

[1] Harbin Inst Technol, Sch Chem & Chem Engn, State Key Lab Urban Water Resource & Environm, Harbin 150001, Peoples R China

来源：

INORGANIC CHEMISTRY COMMUNICATIONS | 2020年 / 111卷

基金：

中国国家自然科学基金; 国家重点研发计划;

关键词：

HEAVY-METAL IONS; REDUCED GRAPHENE OXIDE; ELECTROCHEMICAL DETECTION; SENSOR; LEAD; CADMIUM; NANOPARTICLES; NANOCOMPOSITE; COMPOSITES; ADSORPTION;

D O I：

10.1016/j.inoche.2019.107672

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Heavy metal pollution causes serious health threat to humanbeings. Herein we fabricated a novel bismuth oxycarbide (BOC) modified glassy carbon electrode (GCE) for the simultaneous detection of cadmium and lead ions using differential pulse anodic stripping voltammetry (DPASV). The main factors influencing the detection performance, such as solution pH, deposition voltage and deposition time were optimized to be 4.5, -1.3v, and 700s, respectively. The detection limits for lead ions and cadmium ions were 4.30 mu g/L and 3.97 mu g/L, respectively. These detection limits are both lower than 5 mu g/L for cadmium ions and 10 mu g/L for lead ions national standards. The BOC modified GCE exhibits good selectivity and reliability for the detection of lead ions and cadmium ions. BOC/GCE may find great potential for heavy metal ions detection in real water sample.

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页数：5

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