Simultaneous Determination of Copper, Lead, and Cadmium at Hexagonal Mesoporous Silica Immobilized Quercetin Modified Carbon Paste Electrode
Joint Authors
Liu, Zhen
Sun, Danzi
Zhou, Changli
Xia, Fangquan
Zhang, Xin
Dong, Yanmin
Source
Journal of Automated Methods and Management in Chemistry
Issue
Vol. 2010, Issue 2010 (31 Dec. 2010), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2010-04-27
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Abstract EN
A new method was developed for simultaneous determination of copper, lead, and cadmium, based on their voltammetric response at a carbon paste electrode modified with hexagonal mesoporous silica (HMS) immobilized quercetin (HMS-Qu/CPE).
Compared with quercetin modified carbon paste electrode (Qu/CPE) and quercetin ionic liquid modified carbon paste electrode (Qu-IL/CPE), the HMS-Qu/CPE exhibited improved selectivity and high sensitivity toward the detection of copper, lead, and cadmium.
The properties of the HMS-Qu/CPE in 0.1 M HCOONa-HCl buffer solution (pH4.7) were investigated by adsorptive stripping voltammetry (ASV) and electrochemical impedance spectroscopy (EIS).
The electrochemical behavior of copper, lead, and cadmium at the modified electrodes and factors affecting the preconcentration procedures were also investigated.
Detection limits of 5.0, 0.8, 1.0 nM for copper, lead, and cadmium were obtained, respectively.
The method is simple, fast, sensitive, and selective, and is successfully applied to soil sample.
American Psychological Association (APA)
Xia, Fangquan& Zhang, Xin& Zhou, Changli& Sun, Danzi& Dong, Yanmin& Liu, Zhen. 2010. Simultaneous Determination of Copper, Lead, and Cadmium at Hexagonal Mesoporous Silica Immobilized Quercetin Modified Carbon Paste Electrode. Journal of Automated Methods and Management in Chemistry،Vol. 2010, no. 2010, pp.1-6.
https://search.emarefa.net/detail/BIM-501037
Modern Language Association (MLA)
Xia, Fangquan…[et al.]. Simultaneous Determination of Copper, Lead, and Cadmium at Hexagonal Mesoporous Silica Immobilized Quercetin Modified Carbon Paste Electrode. Journal of Automated Methods and Management in Chemistry No. 2010 (2010), pp.1-6.
https://search.emarefa.net/detail/BIM-501037
American Medical Association (AMA)
Xia, Fangquan& Zhang, Xin& Zhou, Changli& Sun, Danzi& Dong, Yanmin& Liu, Zhen. Simultaneous Determination of Copper, Lead, and Cadmium at Hexagonal Mesoporous Silica Immobilized Quercetin Modified Carbon Paste Electrode. Journal of Automated Methods and Management in Chemistry. 2010. Vol. 2010, no. 2010, pp.1-6.
https://search.emarefa.net/detail/BIM-501037
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-501037