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5349576 
Journal Article 
Automated glass capillary gas chromatographic analysis of PCB and organochlorine pesticide residues in agricultural products 
Tuinstra, L; Traag, WA 
1979 
2 
12 
723-728 
PESTAB. The use of glass capillary gas chromatography to separate complicated PCB mixtures into individual compounds, and to separate and determine organochlorine pesticides, is presented. Organochlorine pesticides detected with this method included, HCB (hexachlorobenzene), PCNB (quintozene), PCA (chloridazon), alpha HCH (lindane), heptachlor epoxide, aldrin, telodrin (isobenzan), isodrin, dieldrin, endrin, alpha-HCH (alpha-BHC), and SIGMADDT. Use of this technique to determine the contents of individual chlorinated biphenyls in milk and milk products, animal feedstuffs, complicated extracts of soil and vegetable material is discussed. The study of DDT degradation using this system is considered. The detection limit for individual chlorinated biphenyls in fats and vegetable materials, using an extraction and clean-up procedure based on saponification of the sample, is found to be at the ppb level. Preliminary results of the analysis of milk samples from the Netherlands for PCB residues are also presented.