The Influence of the Electrodeposition Conditions on the Electroanalytical Performance of the Bismuth Film Electrode for Lead Determination

The Influence of the Electrodeposition Conditions on the Electroanalytical Performance of the Bismuth Film Electrode for Lead Determination

Author Nunes, Luiza M. S. Autor UNIFESP Google Scholar
Faria, Ronaldo C. Autor UNIFESP Google Scholar
Institution Universidade Federal de São Paulo (UNIFESP)
Abstract The bismuth film is a great promise as a suitable material to replace the mercury electrodes due to its low toxicity and good cathodic potential range. This work studies the influence of the electrodeposition conditions in the morphology and electroanalytical performance of the bismuth film electrodeposited onto copper electrode. the bismuth films were obtained in nitric or hydrochloric acid solutions with and without the presence of sodium citrate. the films were characterized by field emission scanning electron microscopy (FE-SEM) and scanning electron microscopy with energy dispersive X-ray spectrometry (SEM-EDX). the microscopic analysis of the bismuth film obtained in HCl solution with sodium citrate (BIFE-Cit) showed more homogeneous structure with higher content of bismuth than the film obtained in HCl only (BiFE-HCl). the BiFE-Cit exhibited a better analytical performance for lead with good adherence to the copper substrate.
Keywords Bismuth film electrode
Stripping voltammetry
Trace analysis
Electrodeposition
Language English
Sponsor Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
Grant number FAPESP: 05/02998-5
Date 2008-10-01
Published in Electroanalysis. Weinheim: Wiley-v C H Verlag Gmbh, v. 20, n. 20, p. 2259-2263, 2008.
ISSN 1040-0397 (Sherpa/Romeo, impact factor)
Publisher Wiley-Blackwell
Extent 2259-2263
Origin http://dx.doi.org/10.1002/elan.200804293
Access rights Closed access
Type Article
Web of Science ID WOS:000260693300015
URI http://repositorio.unifesp.br/handle/11600/30929

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