Determination of Trace Copper in Water Samples by Anodic Stripping Voltammetry at Gold Microelectrode

被引：0
|
作者：
Zhuang, Jianmei [1 ]
Zhang, Li [2 ,3 ,4 ]
Lu, Wenjing [2 ,3 ,4 ]
Shen, Dazhong [1 ]
Zhu, Rilong [5 ]
Pan, Dawei [2 ,3 ]
机构：
[1] Shangdong Normal Univ, Key Lab Mol & Nanomat Probes, Minist Educ China, Coll Chem Chem Engn & Mat Sci, Jinan 250014, Peoples R China
[2] Chinese Acad Sci, Shandong Prov Key Lab Coastal Zone Environm Proc, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China
[3] Chinese Acad Sci, CAS, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China
[4] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
[5] Hunan Prov Environm Monitoring Ctr, Changsha 410014, Hunan, Peoples R China
来源：
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE | 2011年 / 6卷 / 10期
基金：
中国国家自然科学基金;
关键词：
Gold microelectrode; Copper; Anodic stripping voltammetry; Water samples; CARBON ELECTRODES; NATURAL-WATERS; SILICA; ELECTROCHEMISTRY; PRECONCENTRATION; ARRAYS; METALS; CU(II); IONS; ACID;
D O I：
暂无
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
The applicability of gold microelectrode of 25 mu m diameter for electrochemical determination of trace copper ions (Cu2+) in water samples by anodic stripping voltammetry (ASV) has been demonstrated. The analysis of Cu2+ at gold microelectrode includes two steps. Cu2+ ions are firstly reduced and accumulated on the microelectrode surface during an accumulation step, then oxidized during the positive potential sweep. Due to the rapid mass transporting and low background current of gold microelectrode, low detection limit (0.3 nM) and wide linear range (1.0-90 nM) can be obtained. The practical application of gold microelectrode was verified by determination of trace level of Cu2+ in tap water, lake water and commercial drinking water samples.
引用
收藏
页码：4690 / 4699
页数：10
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