Description:Fats, Food products, Polychlorinated biphenyls, Pesticides, Animal fats, Vegetable fats, Oils, Animal oils, Vegetable oils, Edible oils, Chemical analysis and testing, Determination of content, Contaminant determination (food), Food testing, Gas chromatography, Column chromatography, Thin-layer chromatography, Liquid chromatography, Chromatography, Separation methods (chemical analysis), Extraction methods of analysis, Safety measures, Quantitative analysis, Reproducibility, Test specimens, Specimen preparation, Test equipment, Testing conditions, Bibliography