Headspace water-based liquid-phase microextraction

被引：95

作者：

Zhang, J ^{[1
]}

Su, T ^{[1
]}

Lee, HK ^{[1
]}

机构：

[1] Natl Univ Singapore, Dept Chem, Singapore 117543, Singapore

来源：

ANALYTICAL CHEMISTRY | 2005年 / 77卷 / 07期

关键词：

D O I：

10.1021/ac040129h

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A new organic-free mode of headspace liquid-phase microextraction termed headspace water-based liquid-phase microextraction has been developed. Five phenols were used as model compounds in the development and evaluation of the procedure. Parameters affecting the extraction efficiency were investigated. Under optimal extraction conditions, very high enrichment factors were achieved. Since only water (with sodium hydroxide to adjust the pH) and a conventional microsyringe were used, this new technique is affordable, efficient, and convenient for extraction of volatile and semvolatile ionizable compounds. In addition, in combination with capillary electrophoresis, the entire analytical process is totally organic solvent-free and is thus environmentally friendly.

引用

页码：1988 / 1992

页数：5

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