期刊
JOURNAL OF CHROMATOGRAPHY A
卷 1000, 期 1-2, 页码 3-27出版社
ELSEVIER
DOI: 10.1016/S0021-9673(03)00511-9
关键词
reviews; sample preparation; solvent extraction; supercritical fluid extraction; solid-phase extraction; solid-phase microextraction; molecular imprinting
The importance of sample preparation methods as the first stage in an analytical procedure is emphasised and examined. Examples are given of the extraction and concentration of analytes from solid, liquid and gas phase matrices, including solvent phase extractions, such as supercritical fluids and superheated water extraction, solid-phase extraction and solid-phase microextraction, headspace analysis and vapour trapping. The potential role of selective extraction methods, including molecular imprinted phases and affinity columns, are considered. For problem samples alternative approaches, such as derivatisation are discussed, and potential new approaches minimising sample preparation are noted. (C) 2003 Elsevier Science B.V. All rights reserved.
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