GC analysis of trichloroacetic acid in water samples by large-volume injection and thermal decarboxylation in a programmed-temperature vaporizer

被引：11
|
作者：
Drechsel, D [1 ]
Dettmer, K [1 ]
Engewald, W [1 ]
Bittner, T [1 ]
Efer, J [1 ]
机构：
[1] Univ Leipzig, Inst Analyt Chem, D-04103 Leipzig, Germany
来源：
CHROMATOGRAPHIA | 2001年 / 54卷 / 3-4期
关键词：
programmed-temperature vaporization; large-volume injection; trichloroacetic acid; thermal decarboxylation; chloroform;
D O I：
10.1007/BF02492235
中图分类号：
Q5 [生物化学];
学科分类号：
071010 ; 081704 ;
摘要：
A GC method has been developed for the analysis of trichloroacetic acid (TCA) in water samples. It entails large-volume injection (LVI) and programmed-temperature vaporization (PTV) of water samples, thermal decarboxylation of TCA to chloroform in the injector, and GC-ECD analysis of the decarboxylation product. Conditions such as final injector temperature, splitless time, and injection volume were optimized. The limit of detection is approximately 0.1 mug l(-1). Several real samples were analyzed. The method presented is an easy means of determination of TCA and eliminates sample-preparation steps such as extraction and derivatization.
引用
收藏
页码：151 / 154
页数：4
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