NEN EN 12393-2 : 2013

Foreword
Introduction
1 Scope
2 Normative references
3 Principle
4 General: Summary of procedures
5 Method L: Extraction with acetone, liquid-liquid partition
    with dichloromethane and clean-up on a silica gel/charcoal
    column
6 Method M: Extraction with acetone and liquid-liquid partition
    with dichloromethane/light petroleum, if necessary clean-up
    on Florisil
7 Method N: Extraction with acetone, liquid-liquid partition
    with dichloromethane, clean-up with gel permeation and silica
    gel chromatography
8 Method O: Extraction with acetonitrile, liquid-liquid
    partition with light petroleum and clean-up on a Florisil
    column
9 Method P: Extraction of organophosphorus compounds with ethyl
    acetate, and if necessary, clean-up by gel permeation
    chromatography
Annex A (informative) Average water content of crops and foods
Annex B (informative) Bibliography

Defines methods for the extraction and clean-up of food samples of plant origin for quantitative determination of pesticide residues.