Determinação seletiva de tributilestanho na presença de Sn(IV) em amostras ambientais usando HG-ICP OES e Saccharomyces cerevisiae como material sorvente
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Data
2010-01-01
Autores
Silva, Monizze Vannuci e [UNESP]
Menegario, Amauri Antonio [UNESP]
Franchi, Mariana [UNESP]
Tonello, Paulo Sergio [UNESP]
Brossi-Garcia, Ana Luiza [UNESP]
Título da Revista
ISSN da Revista
Título de Volume
Editor
Sociedade Brasileira de Química
Resumo
A method for selective determination of tributyltin in the presence of Sn(IV) by combining hydride generation inductively coupled plasma optical emission spectrometry (HG-ICP OES) and solid phase extraction (SPE) using baker's yeast is proposed. The procedure is based on selective retention of TBT by the yeast at pH = 6. Detection limit of 1.9 µg L-1 and quantification limit of 6.3 µg L-1 were obtained. TBT and San(IV) were determined in the range of 0-25 µg L-1 and the proposed approach was applied to analyze river water, sea water and biological extracts, with recoveries of 114, 101 and 86%, respectively.
Descrição
Palavras-chave
SPE, TBT, HG-ICP OES
Como citar
Química Nova. Sociedade Brasileira de Química, v. 33, n. 7, p. 1529-1534, 2010.