Simultaneous Determination of Cd2+, Pb2+, Cu2+ and Hg2+ at a Carbon Paste Electrode Modified with Ionic Liquid-functionalized Ordered Mesoporous Silica

被引：59

作者：

Zhang, Penghui ^{[1
]}

Dong, Sheying ^{[1
]}

Gu, Guangzhe ^{[1
]}

Huang, Tinglin ^{[2
]}

机构：

[1] Xian Univ Architecture & Technol, Coll Sci, Xian 710055, Peoples R China

[2] Xian Univ Architecture & Technol, Coll Environm & Municipal Engn, Xian 71005, Peoples R China

来源：

BULLETIN OF THE KOREAN CHEMICAL SOCIETY | 2010年 / 31卷 / 10期

基金：

中国国家自然科学基金;

关键词：

Carbon paste electrode; Ionic liquid; SBA-15; Heavy metal ion; SBA-15 NANOSTRUCTURED SILICA; COMPOSITE ELECTRODE; LEAD; CADMIUM; COPPER; GRAPHITE;

D O I：

10.5012/bkcs.2010.31.10.2949

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Ionic liquid-functionalized ordered mesoporous silica SBA-15 modified carbon paste electrode (CISPE) was fabricated and its electrochemical performance was investigated by cyclic voltammetry, electrochemical impedance spectra. The electrochemical behavior of Cd2+ Pb2+, Cu2+ and Hg2+ at CISPE was studied by differential pulse anodic stripping voltammetry (DPASV). Compared with carbon paste electrode, the stripping peak currents had a significant increase at CISPE. Under the optimized conditions, the detection limits were 8.0 x 10(-8) M (Cd2+), 4.0 x 10(-8) M (Pb2+), 6.0 x 10(-8) M (Cu2+), 1.0 x 10(-8) M (Hg2+), respectively. Furthermore, the present method was applied to the determination of Cd2+, Pb2 +, Cu2+ and Hg2+ in water samples and people hair sample.

引用

页码：2949 / 2954

页数：6

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