Determinação seletiva de tributilestanho na presença de Sn(IV) em amostras ambientais usando HG-ICP OES e Saccharomyces cerevisiae como material sorvente Selective determination of tributyltin in the presence of Sn(IV) in environmental samples using HG-ICP OES and Saccharomyces cerevisiae as sorbing material

Química Nova

关键词: SPE;    TBT;    HG-ICP OES;   

DOI  :  10.1590/S0100-40422010000700020

来源: DOAJ

【 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】

Unknown