Determination of tributyltin by automated in-tube solid-phase microextraction coupled with HPLC-ES-MS

被引：50

作者：

Wu, JC ^{[1
]}

Mester, Z ^{[1
]}

Pawliszyn, J ^{[1
]}

机构：

[1] Univ Waterloo, Dept Chem, Waterloo, ON N2L 3G1, Canada

来源：

JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY | 2001年 / 16卷 / 02期

关键词：

D O I：

10.1039/b007321k

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A simple and sensitive method has been developed for the determination of tributyltin (TBT) in aqueous samples and environmental samples. Automated in-tube solid-phase microextraction (SPME) and high-performance liquid chromatography (HPLC) were coupled to a quadrupole mass spectrometer (MS) using electrospray (ES) as an ionization source. To achieve optimum performance, the conditions for both in-tube SPME and ES-MS detection were optimized for the analysis of TBT. A commercially available capillary, Supel-Q PLOT, showed the best extraction efficiency for TBT and, therefore, it was selected for in-tube SPME. The in-tube SPME-HPLC-ES-MS method provided a linear relationship between the analyte concentration and signal intensity in the range of 0.5-200 ng mL(-1) TBT, with a detection limit of 0.05 ng mL(-1). The method performance was evaluated by determining the content of TBT in a sediment reference material (PACS-2).

引用

页码：159 / 165

页数：7

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