Characterization and Application of Bismuth-Film Modified Graphite-Polyurethane Composite Electrodes

被引：36

作者：

Cesarino, Ivana ^{[1
,2
]}

Gouveia-Caridade, Carla ^{[1
]}

Pauliukaite, Rasa ^{[1
]}

Cavalheiro, Eder T. G. ^{[2
]}

Brett, Christopher M. A. ^{[1
]}

机构：

[1] Univ Coimbra, Dept Quim, Fac Ciencias & Tecnol, P-3004535 Coimbra, Portugal

[2] Inst Quim Sao Carlos, Dept Quim & Fis Mol, BR-13566590 Sao Carlos, SP, Brazil

来源：

ELECTROANALYSIS | 2010年 / 22卷 / 13期

基金：

巴西圣保罗研究基金会;

关键词：

Bismuth film; Carbon composite electrodes; Trace metal determination; Stripping voltammetry; Electrochemical impedance spectroscopy; Bismuth; ADSORPTIVE STRIPPING VOLTAMMETRY; TRACE COBALT; HEAVY-METALS; MERCURY; POTENTIALITIES; EXTRACTS; BEHAVIOR; SENSORS;

D O I：

10.1002/elan.200970003

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Bismuth films (BiF) deposited in situ on graphite-polyurethane composite electrodes were successfully used for the determination of Zn, Cd, Pb, Cu and Hg, simultaneously in acetate buffer solution pH 4.5 using square wave anodic stripping voltammetry. It is possible to determine metals reoxidizal at potentials more negative and more positive than Bi using in situ deposited BiF; reoxidation was studied by electrochemical impedance spectroscopy. The BiF-modified electrode was applied to analyse tap water. The influence of surface-active compounds, Triton X-100 and bovine serum albumin, on the stripping of these metals was investigated; Nation coatings did not significantly improve the performance.

引用

页码：1437 / 1445

页数：9

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