Optimisation of solid-phase microextraction of volatiles

被引：13
|
作者：
Matisová, E
Medved'ová, M
Vraniaková, J
Simon, P
机构：
[1] Slovak Tech Univ Bratislava, Fac Chem & Food Technol, Dept Analyt Chem, Bratislava 81237, Slovakia
[2] Slovak Tech Univ Bratislava, Fac Chem & Food Technol, Dept Chem Phys, Bratislava 81237, Slovakia
来源：
JOURNAL OF CHROMATOGRAPHY A | 2002年 / 960卷 / 1-2期
关键词：
solid-phase microextraction; open-cap vials; septum-closed vials; water analysis; volatile compounds;
D O I：
10.1016/S0021-9673(02)00330-8
中图分类号：
Q5 [生物化学];
学科分类号：
071010 ; 081704 ;
摘要：
The results of a systematic study on the precision and repeatability of measurements of the headspace solid phase micro-extraction (SPME) with open-cap vials in combination with capillary gas chromatography in comparison with septum-sealed vials are reported. Benzene, toluene, ethylbenzene, and xylene isomers (BTEX) were used as the target analytes in the investigation of spiked water samples at concentration levels of 42.5 mug l(-1). The dependence of a sample volume versus peak area showed maximum SPME recovery. The influence of sample volume on the precision and the time of taking the sample on the losses of volatile analytes was examined. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：159 / 164
页数：6
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