BS EN 15742:2020,Animal Feeding Stuffs: Methods Of Sampling And Analysis – Determination Of OCPs By GC-ECD.
This document specifies a gas chromatographic method with electron capture detection (ECD) for the determination of organochlorine pesticides (OCPs) in compound feeds and oil and fats.
The method is applicable to animal compound feed, oils and fats and fish meals with a water content up to about 20 by weight and oil/fatty samples containing residues of one or more of the following OCPs,toxaphene and some of their isomers and degradation products.
Use only reagents of recognized analytical grade and with a purity suitable for OCP and PCB residue analysis. Check the purity of the reagents by performing a blanc test under the same conditions as used in the method. The chromatogram should not show any interfering impurity at the retention time of compounds of interest.
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