Standard Svensk standard · SS-EN 15741:2009

Djurfoder - Bestämning av organoklor-pesticider och PCB:er med GC/MS

Status: Gällande

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 a-/ß-isomers and Endosulfan-sulphate);
- Endrin;
- Heptachlor (= sum of Heptachlor and ß-Heptachlorepoxide);
- Hexachlorobenzene (HCB);
- Hexachlorocyclohexane isomers a-HCH (a-BHC), ß-HCH (ß-BHC), ?-HCH (?-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) [1], 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 (a-, ß- and sulphate). Individual laboratories are responsible to ensure that the equipment they used will achieve these limits of quantifications.




Språk: Engelska

Framtagen av: Djurfoder, SIS/TK 435/AG 02

Internationell titel: Animal feeding stuffs - Determination of OC-pesticides and PCB's by GC/MS

Artikelnummer: STD-69074

Utgåva: 1

Fastställd: 2009-03-09

Antal sidor: 36