DETERMINATION OF VOLATILE SULFUR-COMPOUNDS IN WATER SAMPLES, BEER AND COFFEE WITH PURGE-AND-TRAP GAS-CHROMATOGRAPHY MICROWAVE-INDUCED PLASMA-ATOMIC EMISSION-SPECTROMETRY

被引：36

作者：

GERBERSMANN, C ^{[1
]}

LOBINSKI, R ^{[1
]}

ADAMS, FC ^{[1
]}

机构：

[1] UNIV INSTELLING ANTWERP,DEPT CHEM,B-2610 ANTWERP,BELGIUM

来源：

ANALYTICA CHIMICA ACTA | 1995年 / 316卷 / 01期

关键词：

ATOMIC EMISSION SPECTROMETRY; GAS CHROMATOGRAPHY; ENVIRONMENTAL ANALYSIS; SULFUR; WATERS; BEER; COFFEE;

D O I：

10.1016/0003-2670(95)00344-Y

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A method for the determination of 13 volatile sulfur compounds including dimethyl sulfide, dimethyl disulfide (DMDS), carbon disulfide and other sulfides and thiols in water samples was developed. The analytes were stripped from the sample by a now of helium and preconcentrated in a capillary cryogenic trap. This was followed by determination by gas chromatography-microwave-induced plasma atomic emission spectrometry. Detection limits ranged from 8 pg (0.4 ng l(-1)) for ethanethiol to 17 pg (0.9 ng l(-1)) for DMDS. The method was successfully applied to the quantitative analysis of fresh and sea water and after slight modifications also to different Belgian beer types and coffee powder. A system for the automated sample delivery was developed for liquid samples.

引用

页码：93 / 104

页数：12

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