Simultaneous Determination of Trace Zinc and Cadmium by Anodic Stripping Voltammetry Using a Polymeric Film Nanoparticle Self-Assembled Electrode

被引：23

作者：

Gholivand, Mohammad Bagher ^{[1
]}

Azadbakht, Azadeh ^{[2
]}

Pashabadi, Afshin ^{[1
]}

机构：

[1] Razi Univ, Dept Analyt Chem, Fac Chem, Kermanshah, Iran

[2] Islamic Azad Univ Khorramabad, Dept Chem, Fac Sci, Khorramabad, Iran

来源：

ELECTROANALYSIS | 2011年 / 23卷 / 02期

关键词：

Gold nanoparticles; Self-assembled monolayers; Anodic stripping voltammetry; Dipicolinic acid; Zinc; Cadmium; CARBON NANOTUBE ELECTRODE; ON-COLUMN COMPLEXATION; GOLD NANOPARTICLES; SPECTROSCOPIC CHARACTERIZATION; 2,6-PYRIDINEDICARBOXYLIC ACID; METAL-IONS; LEAD; ATTACHMENT; SEPARATION; GLUCOSE;

D O I：

10.1002/elan.201000395

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A promising modified electrode was fabricated by polymerization a conductive polymer film of dipicolinic acid (DPA) onto gold nanoparticle (AuNP)-cysteine-gold electrode (Au). The morphology of poly(DPA)-AuNP-Au electrode was investigated by scanning electron microscopy (SEM). This chemically modified electrode was used for electrochemical determination of cadmium and zinc in aqueous media using differential pulse anodic stripping voltammetry. The result showed that the modified electrode could clearly resolve the anodic stripping peaks of zinc and cadmium. The linear analytical curves were obtained in the ranges of 0.020-25.0 and 0.045-17.0 mu M for zinc and cadmium respectively. The limit of detections (S/N=3) were 0.008 mu M for zinc and 0.015 mu M for cadmium.

引用

页码：364 / 370

页数：7

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