Determinação seletiva de tributilestanho na presença de Sn(IV) em amostras ambientais usando HG-ICP OES e Saccharomyces cerevisiae como material sorvente

Química Nova

Monizze Vannuci E Silva²  Amauri Antonio Menegario²  Mariana Franchi²  Paulo Sergio Tonello²  Ana Luiza Brossi-garcia¹ 

[1] ,Universidade Estadual Paulista Centro de Estudos Ambientais Rio Claro SP ,Brasil

关键词: SPE;    TBT;    HG-ICP OES;   

DOI  :  10.1590/S0100-40422010000700020

来源: SciELO

【 摘 要 】

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.

【 授权许可】

CC BY-NC   
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