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

被引：57
|
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
收藏
页码：2949 / 2954
页数：6
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