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Normas BSI – AENOR
BS EN 12393-2:2013

BS EN 12393-2:2013

Foods of plant origin. Multiresidue methods for the determination of pesticide residues by GC or LC-MS/MS. Methods for extraction and clean-up

Fecha:
2013-11-30 /Confirmed
Comité:
AW/275
Equivalencias internacionales:

EN 12393-2:2013

Relación con otras normas BSI:

Reemplaza a: BS EN 12393-2:2008

Resumen:
This European Standard specifies methods for the extraction and clean-up of food samples of plant origin for quantitative determination of pesticide residues. Different solvents can be used for this purpose. These pesticide residues are generally associated with other co-extracted compounds which would interfere in the analysis. To purify the crude extracts to be analysed, several techniques can be used. This European Standard contains the following extraction and clean-up methods that have been subjected to interlaboratory studies and/or are adopted throughout Europe: - method M: Extraction with acetone and liquid-liquid partition with dichloromethane/light petroleum, if necessary clean-up on Florisil® ) [1], [2], [3]; - method N: Extraction with acetone, liquid-liquid partition with dichloromethane or cyclohexane/ethyl acetate and clean-up with gel permeation and silica gel chromatography [4], [5]; - method P: Extraction with ethyl acetate, and if necessary, clean-up by gel permeation chromatography [6]. This European Standard specifies the details of methods M, N and P for the extraction and the clean-up of food samples of plant origin. Several solvents at different volumes are used for extraction. Techniques of clean-up are listed such as liquid-liquid partition, liquid chromatography on various adsorbents and gel permeation chromatography. A table providing the couples (matrix/pesticide) which have been submitted to collaborative studies and a list of indicative applicability of the method to different pesticides are given for each method, wherever possible.
Keywords:
Phosphorus organic compounds, Halogenated hydrocarbons, Chromatography, Solvent extraction methods, Contaminant determination (food), Residues (pesticides), Extraction methods of analysis, Food products, Determination of content, Specimen preparation, Food testing, Pesticides, Gas chromatography, Food crops, Chemical analysis and testing, Test equipment, Test specimens
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