This European Standard specifies a gas chromatographic/mass spectrometric method for the determination of organochlorine pesticides (OC’s) and polychlorinated biphenyls (PCBs) in animal feeding stuffs and oil.
The method is applicable to animal feeding stuffs with a water content up to about 20 wt% and oil/fatty samples containing residues of one or more of the following OC’s and PCBs and some of their isomers and degradation products:
-Aldrin;
-Dieldrin;
-Chlordane (= sum of Chlordane isomers and Oxychlordane);
-DDT (= sum of isomers op'-DDT, pp'-DDT, pp'-TDE (pp'-DDD), and pp'-DDE);
-Endosulfan (sum of α-/β-isomers and Endosulfan-sulphate);
-Endrin;
-Heptachlor (= sum of Heptachlor and β-Heptachlorepoxide);
-Hexachlorobenzene (HCB);
-Hexachlorocyclohexane isomers α-HCH (α-BHC),β-HCH (β-BHC),γ-HCH (γ-BHC or lindane);
-PCB 28, 52,101,138,153 and 180 (“Indicator PCBs”) and PCB 198, 209.
The method is not yet applicable to Chlorocamphene (Toxaphene), a complex mixture of polychlorinated
camphenes.Chlorocamphene has a very distinctive chromatographic profile and is easily recognisable by GC/ECD.Positive identification of the toxaphene isomers can be performed by negative chemical ionisation mass spectrometry (NCI-MS),electron impact tandem mass spectrometry (EI-MSxMS) or electron impact high resolution mass spectrometry (EI-HRMS),which is not within the scope of this method.
The limit of quantification for the mentioned organochlorine pesticides and PCBs is 5 ng/g in general.
However,10 ng/g applies for Heptachlor Aldrin, Endrin,Dieldrin, and Endosulfan(α-,β- and sulphate).
Individual laboratories are responsible to ensure that the equipment they used will achieve these limits of quantifications.
BS EN 15741:2009 Referenced Document
ISO 6498 Animal feeding stuffs - Guidelines for sample preparation*， 2012-06-01 Update
BS EN 15741:2009 history
2020BS EN 15741:2020 Animal feeding stuffs: Methods of sampling and analysis. Determination of OCPs and PCBs by GC/MS
2009BS EN 15741:2009 Animal feeding stuffs - Determination of OC-pesticides and PCB's by GC/MS