title: On-line clean-up of pressurized liquid extracts for the determination of polychlorinated biphenyls in feedingstuffs and food matrices using gas chromatography-mass spectrometry.
abstract: This paper describes a fast and simple pressurized liquid extraction method for the determination of polychlorinated biphenyls (PCBs) in feedingstuffs and food matrices. The method is based on a simultaneous extraction/clean-up step requiring a minimum of sample handling. The final analysis was performed with gas chromatography-mass spectrometry. Seven PCBs (28, 52, 101, 118, 138, 153 and 180) were analyzed, all of which are indicator congeners that, according to European legislation should be included in the analytical monitoring program. The extracted matrices were spiked feed for poultry and two certified reference materials naturally contaminated with PCBs (cod-liver oil and milk powder), which showed excellent conformity with certified data.
authors.affiliation: European Commission, DG Joint Research Centre, Institute for Health and Consumer Protection, Ispra (VA), Italy.
authors.forename: A
authors.initials: A
authors.lastname: Müller
authors.forename: E
authors.initials: E
authors.lastname: Björklund
authors.forename: C
authors.initials: C
authors.lastname: von Holst
mesh_terms: D000821:Animal Feed / Q000032:analysis*; D003060:Cod Liver Oil / Q000737:chemistry; D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods*; D011078:Polychlorinated Biphenyls / Q000032:analysis*; D011312:Pressure; D012015:Reference Standards
chemical_list: D003060:Cod Liver Oil; D011078:Polychlorinated Biphenyls