title: Hexachlorobenzene and 1,1-di(4-chlorophenyl)-2,2-dichloroethene in serum of uremic patients and healthy persons: determination by capillary gas chromatography and electron capture detection.
abstract: The concentrations of organochlorine pesticides in serum have been determined by GC and electron capture detection. Studies were performed in 7 nondialyzed, 10 dialyzed and 6 healthy persons. Only hexachlorobenzene (HCB) and 1,1-di(4-chlorophenyl)-2,2-dichloroethene (p,p'-DDE) were consistently present. No interference by other pesticides or polychlorinated biphenyls was found by checking with GC-MS. For the nondialyzed uremic patients the average HCB concentration was 16.2 nmol/l (sigma = 6.7, n = 7), and the p,p'-DDE level 26.4 nmol/l (sigma = 31.4, n = 7). For the dialyzed uremic patients the average HCB level was 15.5 nmol/l (sigma = 11.2, n = 10) before dialysis and 17.2 nmol/l (sigma = 14.4, n = 8) after dialysis, the concentration of p,p'-DDE was 27.0 nmol/l (sigma = 38.4, n = 10) before dialysis and 28.0 nmol/l (sigma = 37.4, n = 8) after dialysis. For the healthy persons the average concentration of HCB was 7.7 nmol/l (sigma = 1.8, n = 6) and the concentration of p,p'-DDE was 20.1 nmol/l (sigma = 10.4, n = 6). HCB concentrations were significantly higher in serum of dialyzed and nondialyzed uremic patients than in controls (Wilcoxon's test).
authors.affiliation: Laboratory of Instrumental Analysis, Faculty of Chemical Engineering, Eindhoven University of Technology, The Netherlands.
authors.forename: G A
authors.initials: GA
authors.lastname: Rutten
authors.forename: A C
authors.initials: AC
authors.lastname: Schoots
authors.forename: R
authors.initials: R
authors.lastname: Vanholder
authors.forename: R
authors.initials: R
authors.lastname: DeSmet
authors.forename: S M
authors.initials: SM
authors.lastname: Ringoir
authors.forename: C A
authors.initials: CA
authors.lastname: Cramers
mesh_terms: D000328:Adult; D002722:Chlorobenzenes / Q000097:blood*; D002849:Chromatography, Gas; D003633:Dichlorodiphenyl Dichloroethylene / Q000097:blood*; D005260:Female; D008401:Gas Chromatography-Mass Spectrometry; D006581:Hexachlorobenzene / Q000097:blood*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010573:Pesticide Residues / Q000097:blood*; D014511:Uremia / Q000097:blood*
chemical_list: D002722:Chlorobenzenes; D010573:Pesticide Residues; D003633:Dichlorodiphenyl Dichloroethylene; D006581:Hexachlorobenzene