Partitioned dispersive liquid-liquid microextraction An approach for polar organic compounds extraction from aqueous samples

被引：74

作者：

Melwanki, Mahaveer B. ^{[1
]}

Fuh, Ming-Ren ^{[1
]}

机构：

[1] Soochow Univ, Dept Chem, Taipei, Taiwan

来源：

JOURNAL OF CHROMATOGRAPHY A | 2008年 / 1207卷 / 1-2期

关键词：

Partitioned dispersive liquid-liquid microextraction; Polar compounds; Liquid chromatography; River water;

D O I：

10.1016/j.chroma.2008.08.052

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

Partitioned dispersive liquid-liquid microextraction (PDLLME) efficiency was demonstrated for the extraction of polar organic compounds (chlorophenoxyacetic acids) prior to high performance liquid chromatography (HPLC). The method was based on the formation of tiny droplets of an organic extractant in an aqueous sample (river water) by injecting a mixture of a water-immiscible organic solvent [tetrachloroethylene(TCE)] as extractant dissolved in a water-miscible organic dispersive solvent [tetrahydrofuran (THF)]. Based on their partition coefficients, polar compounds were extracted into the dispersed WE droplets as well as into THE Different parameters affecting the extraction efficiency were evaluated and precision, linearity, detection limit and an enrichment factor were determined. (C) 2008 Elsevier B.V. All rights reserved.

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页码：24 / 28

页数：5

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