EXTRACTION AND ANALYSIS OF VARIOUS BENZOTHIAZOLES FROM INDUSTRIAL WASTE-WATER

被引：64

作者：

FIEHN, O ^{[1
]}

REEMTSMA, T ^{[1
]}

JEKEL, M ^{[1
]}

机构：

[1] TECH UNIV BERLIN,DEPT WATER QUAL CONTROL,D-10623 BERLIN,GERMANY

来源：

ANALYTICA CHIMICA ACTA | 1994年 / 295卷 / 03期

关键词：

LIQUID CHROMATOGRAPHY; EXTRACTION; BENZOTHIAZOLES; WASTE-WATER; WATERS;

D O I：

10.1016/0003-2670(94)80235-1

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A method was developed for the analysis of benzothiazole, 2-mercaptobenzothiazole, 2-(methylthio)benzothiazole and 2-(thiocyanomethylthio)benzothiazole from industrial wastewater. It includes liquid-liquid extraction with ethyl acetate and toluene at pH 8.5, followed by liquid chromatographic (LC) analysis using a RP-18 column and an acetonitrile-water gradient with UV detection at variable wavelengths. LC analysis is compared with the potential of gas chromatography and its advantages are discussed. Solid-phase extraction appeared not to be suitable for all compounds. The method allows the determination of benzothiazole derivatives without further clean-up down to contents of about 5 mu g l(-1), with recovery rates exceeding 90% for all compounds. Dissolved organic carbon contents of up to 900 mg l(-1) did neither interfere with extraction nor with chromatographic separation.

引用

页码：297 / 305

页数：9

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