Selective determination of tributyltin in the presence of Sn(IV) in environmental samples using HG-ICP OES and Saccharomyces cerevisiae as sorbing material

Quimica nova

Franchi, Mariana¹  Tonello, Paulo Sergio¹  Menegario, Amauri Antonio¹  Silva, Monizze Vannuci e¹  Brossi-Garcia, Ana Luiza¹ 

[1] Universidade Estadual Paulista, Rio Claro, Brasil

关键词: SPE;    TBT;    HG-;    ICP OES.;   

DOI  :  10.1590/S0100-40422010000700020

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 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