Pré-concentração de cádmio com Saccharomyces cerevisiae e determinação em águas fluviais usando espectrometria de emissão óptica com plasma indutivamente acoplado
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Data
2007-04-01
Autores
Biscaro, Priscila Andreoli [UNESP]
Menegário, Amauri Antonio [UNESP]
Tonello, Paulo Sergio [UNESP]
Caldorin, Rogério
Título da Revista
ISSN da Revista
Título de Volume
Editor
Sociedade Brasileira de Química
Resumo
A preconcentration method based on the use of Saccharomyces cerevisiae as sorbent material is proposed for the determination of Cd(II) in river water. The solid phase extraction was performed in batch mode and the determination of the analyte in the solid phase was easily carried out by introducing a slurry of the yeast (0.0625 g / 2.5 mL) directly into the ICP OES. A limit of detection of 0.11 µg L-1 and a sample throughput in the range of 4 - 54 sample h-1 were obtained. Determinations of cadmium in a certified sample and in real river water samples were in excellent agreement with the expected values.
Descrição
Palavras-chave
solid phase extraction, cadmium, yeast
Como citar
Química Nova. Sociedade Brasileira de Química, v. 30, n. 2, p. 323-326, 2007.