title: [Analysis of PCB- and PCT-methylsulfones in the blood in yusho patients].
abstract: Polychlorinated biphenyl (PCB)- and terphenyl (PCT)-methylsulfones were isolated from the blood of yusho patients sampled in 1987 and characterized by gas chromatography with mass spectrometry (GC/MS), electron capture detection (GC/ECD) and flame photometric detection (GC/FPD). GC/MS analysis for PCB-methylsulfones showed that all the blood tested (nine samples) contained the tri- and tetrachloro congeners. The concentrations of PCB-methylsulfones were estimated to be 15-120 ppb. PCT-methylsulfones detected in the same fraction, which were confirmed by GC/MS comparison with authentic samples as well as by GC/ECD and GC/FPD, consisted of tetra-, penta- and hexachloroterphenyl methylsulfone congeners. The levels of PCT-methylsulfones in six samples detected were preliminarily estimated to be 10-270 ppb, on the basis of a PCB-methylsulfone standard. Their origins and biological effects are unclear at present.
authors.forename: K
authors.initials: K
authors.lastname: Haraguchi
authors.forename: Y
authors.initials: Y
authors.lastname: Masuda
authors.forename: H
authors.initials: H
authors.lastname: Kuroki
authors.forename: M
authors.initials: M
authors.lastname: Ohma
mesh_terms: D005506:Food Contamination; D006801:Humans; D012275:Oryza / Q000506:poisoning*; D010938:Plant Oils / Q000506:poisoning*; D011078:Polychlorinated Biphenyls / Q000097:blood* / Q000506:poisoning; D011080:Polychloroterphenyl Compounds / Q000097:blood / Q000506:poisoning*; D013730:Terphenyl Compounds / Q000506:poisoning*
chemical_list: D010938:Plant Oils; D011080:Polychloroterphenyl Compounds; D013730:Terphenyl Compounds; D011078:Polychlorinated Biphenyls