Determination of Hg2+ on poly(vinylferrocenium) (PVF+)-modified platinum electrode

被引：21

作者：

Celebi, Mutlu Soenmez ^{[1
]}

Ozyoruk, Haluk ^{[1
]}

Yildiz, Attila ^{[1
]}

Abaci, Serdar ^{[1
]}

机构：

[1] Hacettepe Univ, Fac Sci, Dept Chem, TR-06532 Ankara, Turkey

来源：

TALANTA | 2009年 / 78卷 / 02期

关键词：

Mercury determination; PVF+; Anodic stripping; Complexation; Interference; Aqueous solution; STRIPPING VOLTAMMETRIC DETERMINATION; TRACE MERCURY; GOLD; PRECONCENTRATION; FILM; SENSORS; MEDIA;

D O I：

10.1016/j.talanta.2008.11.028

中图分类号：

O65 [分析化学];

学科分类号：

070302 [分析化学];

摘要：

A new surface based on poly(vinylferrocenium) (PVF+)-modified platinum electrode was developed for determination of Hg2+ ions in aqueous solutions. The polymer was electrodeposited on platinum electrode by constant potential electrolysis as PVF+ClO4- Cl- ions were then attached to the polymer matrix by anion exchange and the modified electrode was dipped into Hg2+ solution. Hg2+ was preconcentrated at the polymer matrix by adsorption and also complexation reaction with Cl-. Detection of Hg2+ was carried out by differential pulse anodic stripping voltammetry (DPASV) after reduction of Hg2+. Mercury ions as low as 5 x 10(-10) M could be detected with the prepared electrode and the relative standard deviation was calculated as 6.35% at 1 x 10(-6) M concentration (n = 6). interferences of Ag+, Pb2+ and Fe3+ ions were also studied at two different concentration ratios with respect to Hg2+. The developed electrode was applied to the determination of Hg2+ in water samples. (c) 2008 Elsevier B.V. All rights reserved.

引用

页码：405 / 409

页数：5

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