Application of dynamic liquid-phase microextraction to the analysis of chlorobenzenes in water by using a conventional microsyringe

被引：198

作者：

Wang, Y ^{[1
]}

Kwok, YC ^{[1
]}

He, Y ^{[1
]}

Lee, HK ^{[1
]}

机构：

[1] Natl Univ Singapore, Dept Chem, Kent Ridge 119260, Singapore

来源：

ANALYTICAL CHEMISTRY | 1998年 / 70卷 / 21期

关键词：

D O I：

10.1021/ac9804339

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A dynamic liquid-phase microextraction technique combined with gas chromatography/mass spectrometry (GC/MS) is described for the extraction of 10 chlorobenzenes from water samples into 1 mu L of organic solvent by using a conventional microsyringe, The effects of extraction solvent, plunger movement pattern, sampling volume, number of samplings, and salt concentration on the extraction performance were investigated. Good repeatabilities of extraction were obtained, with the RSD values below 5.3% except for hexachlorobenzene (9.3%), By using a sampling volume of 6 mu L and 15 samplings, detection limits were found to be between 0.02 and 0.05 mu g/L under GC/MS-selective ion monitoring mode.

引用

页码：4610 / 4614

页数：5

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