Supported liquid membrane work-up in combination with liquid chromatography and electrochemical detection for the determination of chlorinated phenols in natural water samples

被引：62

作者：

Knutsson, M ^{[1
]}

Mathiasson, L ^{[1
]}

Jonsson, JA ^{[1
]}

机构：

[1] LUND UNIV,DEPT ANALYT CHEM,S-22100 LUND,SWEDEN

来源：

CHROMATOGRAPHIA | 1996年 / 42卷 / 3-4期

关键词：

column liquid chromatography; liquid membrane extraction; chlorinated phenols; natural water samples;

D O I：

10.1007/BF02269647

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

A sample preparation method has been developed for the determination of chlorinated phenols in water. The method is based on a supported liquid membrane extraction system connected on-line to liquid chromatography with electrochemical detection. The supported liquid membrane technique utilizes a porous PTFE membrane. The membrane is impregnated with an organic solvent which forms a barrier between two aqueous phases and enables selective extraction. The technique can easily be coupled in a flow system. In this investigation five chlorinated phenols (1-5 chlorine atoms) were extracted from natural water samples. Extraction for 30 minutes resulted in detection limits of approximately 25 ng L(-1).

引用

页码：165 / 170

页数：6

共 25 条

[11] SUPPORTED LIQUID MEMBRANE TECHNIQUE FOR TIME-INTEGRATING FIELD SAMPLING OF ACIDIC HERBICIDES AT SUB PARTS-PER-BILLION LEVEL IN NATURAL-WATERS [J].