Publicação

Determination of zinc and cadmium with characterized Electrodes of carbon and polyurethane modified by a bismuth film

Detalhes bibliográficos
Resumo:	This study aims to use electrodes modified with bismuth films for the determination of zinc and cadmium. The film was electrodeposited ex situ on a composite carbon electrode with polyurethane and 2% metallic bismuth (2BiE) and on a carbon bar electrode (CBE). The electrodes were characterized by scanning electron microscopy and energy dispersive spectroscopy. Through differential pulse anodic stripping voltammetry, the electrodes 2BiE and CBE containing bismuth films showed a limit of detection (LOD) of 5.56 × 10-5 and 3.07 × 10-5 g.L-1 for cadmium and 1.24 × 10-4 and 1.53 × 10-4 g.L-1 for zinc, respectively. The presence of a bismuth film increased the sensitivity of both electrodes.
Autores principais:	Bernardelli,Jossy Karla Brasil
Outros Autores:	Lapolli,Flávio Rubens; Cruz,Carlos Marcus Gomes da Silva; Floriano,João Batista
Assunto:	voltammetry modified electrode metals bismuth film
Ano:	2011
País:	Brasil
Tipo de documento:	artigo
Tipo de acesso:	acesso aberto
Instituição associada:	IBICT
Idioma:	inglês
Origem:	Oasisbr

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