Comparison of different trapping methods for pressurised hot water extraction

被引：13
|
作者：
Lüthje, K [1 ]
Hyötyläinen, T [1 ]
Riekkola, ML [1 ]
机构：
[1] Univ Helsinki, Dept Chem, Analyt Chem Lab, FIN-00014 Helsinki, Finland
来源：
JOURNAL OF CHROMATOGRAPHY A | 2004年 / 1025卷 / 01期
关键词：
pressurised hot water extraction; extraction methods; microporous membrane liquid-liquid extraction; soil; sediments; environmental analysis; polynuclear aromatic hydrocarbons;
D O I：
10.1016/j.chroma.2003.08.057
中图分类号：
Q5 [生物化学];
学科分类号：
071010 ; 081704 ;
摘要：
Four trapping methods for pressurised hot water extraction were compared in terms of recovery and selectivity. Also, robustness, repeatability and solvent consumption of the trapping systems were investigated. The trapping methods were collection into solvent following liquid-liquid extraction, solid-phase trapping into Tenax TA (SPE), flat sheet microporous membrane liquid-liquid extraction and hollow fibre microporous membrane liquid-liquid extraction. Polycyclic aromatic hydrocarbons were extracted with these systems from four soil and sediment matrices and the extracts were analysed by GC-MS and size-exclusion chromatography. Clear differences were observed in the selectivity and extraction efficiencies of the trapping systems. (C) 2003 Elsevier B.V. All rights reserved.
引用
收藏
页码：41 / 49
页数：9
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