Journal
JOURNAL OF CHROMATOGRAPHY A
Volume 975, Issue 1, Pages 47-70Publisher
ELSEVIER
DOI: 10.1016/S0021-9673(02)01335-3
Keywords
reviews; food analysis; sample preparation; solvent extraction; membrane separation; sorbent extraction; UV photolysis
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Even with the emergence of advanced techniques of separation and identification, it is rarely possible to analyse food without manipulation. The traditional techniques for sample preparation are time consuming and require large amount of reagents, which are expensive, generate considerable waste, contaminate the sample and can enrich it for analytes. The more analytical techniques have become highly developed, the more has sample clean-up become important in order to fully take advantage of them. Due to the multiplicity of food matrices, it is not possible to use one sample preparation technique, so many methods have been proposed for meeting all the requirements. The newest variations of wet digestion, solvent and sorbent extraction and membrane separation are summarised and their most recent applications to food analysis are provided. (C) 2002 Elsevier Science B.V. All rights reserved.
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