Stripping voltammetric determination of mercury(II) at antimony-coated carbon paste electrode

被引：59

作者：

Ashrafi, Amir M. ^{[1
]}

Vytras, Karel ^{[1
]}

机构：

[1] Univ Pardubice, Dept Analyt Chem, CZ-53210 Pardubice, Czech Republic

来源：

TALANTA | 2011年 / 85卷 / 05期

关键词：

Antimony film electrodes; Carbon paste electrodes; Stripping voltammetry; Mercury(II) determination; Cadmium(II) apparent catalytic effect; GOLD DISK ELECTRODE; SEA-WATER; FILM ELECTRODE; AQUATIC CHEMISTRY; TRACES; POLAROGRAPHY; SAMPLES; MARINE; IONS;

D O I：

10.1016/j.talanta.2011.07.078

中图分类号：

O65 [分析化学];

学科分类号：

070302 [分析化学];

摘要：

A new procedure was elaborated to determine mercury(II) using an anodic stripping square-wave voltammetry at the antimony film carbon paste electrode (SbF-CPE). In highly acidic medium of 1 M hydrochloric acid, voltammetric measurements can be realized in a wide potential window. Presence of cadmium(II) allows to separate peaks of Hg(II) and Sb( Ill) and apparently catalyses reoxidation of electrolytically accumulated mercury, thus allowing its determination at ppb levels. Calibration dependence was linear up to 100 ppb Hg with a detection limit of 1.3 ppb. Applicability of the method was tested on the real river water sample. (C) 2011 Published by Elsevier B.V.

引用

页码：2700 / 2702

页数：3

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