title: Isomer-specific analysis of chlorinated biphenyls, naphthalenes and dibenzofurans in Delor: polychlorinated biphenyl preparations from the former Czechoslovakia.
abstract: Technical polychlorinated byphenyl (PCB) preparations--Delors 103, 104, 105, and 106--produced in the former Czechoslovakia were analyzed for their chlorobiphenyl (CB), chloronaphthalene (PCN) and chlorinated dibenzofuran (PCDF) composition and content using high resolution gas chromatography-mass spectrometry techniques. The congener patterns of Delors 103, 104, 105, and 106 resembled Aroclors 1242, 1248, 1254, and 1260. Delors contained PCNs and PCDFs, as impurities, at microgram per gram concentrations. Concentrations of PCNs and PCDFs in Delors were greater than those found in the corresponding Aroclors. The potential for the emissions of PCNs and PCDFs from Delor was estimated to be 3680 and 860 kg, respectively. Non- and mono-ortho PCBs were the major contributors to 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) equivalents in Delor mixtures.
authors.affiliation: National Institute of Advanced Industrial Science and Technology (AIST), 16-1 Onogawa, Tsukuba, Ibaraki 305-8569, Japan.
authors.forename: Sachi
authors.initials: S
authors.lastname: Taniyasu
authors.forename: Kurunthachalam
authors.initials: K
authors.lastname: Kannan
authors.forename: Ivan
authors.initials: I
authors.lastname: Holoubek
authors.forename: Alena
authors.initials: A
authors.lastname: Ansorgova
authors.forename: Yuichi
authors.initials: Y
authors.lastname: Horii
authors.forename: Nobuyasu
authors.initials: N
authors.lastname: Hanari
authors.forename: Nobuyoshi
authors.initials: N
authors.lastname: Yamashita
authors.forename: Kenneth M
authors.initials: KM
authors.lastname: Aldous
mesh_terms: D001572:Benzofurans / Q000032:analysis*; D018153:Czech Republic; D004785:Environmental Pollutants / Q000032:analysis*; D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods; D007536:Isomerism; D009281:Naphthalenes / Q000032:analysis*; D011078:Polychlorinated Biphenyls / Q000032:analysis* / Q000737:chemistry*
chemical_list: D001572:Benzofurans; D004785:Environmental Pollutants; D009281:Naphthalenes; C015550:2,4',5-trichlorobiphenyl; C023614:dibenzofuran; D011078:Polychlorinated Biphenyls