title: Intercomparative study on the determination of polynuclear aromatic hydrocarbons in marine shellfish tissue.
abstract: Twenty-five laboratories were sent 2 materials, one an acetone powder of lobster digestive gland, the other, the oil which had been extracted during preparation of the powder. Each laboratory was requested to measure the levels of a suite of polycyclic aromatic hydrocarbons in both materials. The response was poor with only 10 laboratories submitting results. Both intra- and interlaboratory precisions were poor; the interlaboratory error was so great as to preclude statistical analysis of the error. Relative standard deviations for oil results determined by liquid chromatography ranged from 39 to 96%.
authors.affiliation: Department of Fisheries and Oceans, Marine Chemistry Division, Halifax, Nova Scotia, Canada.
authors.forename: J F
authors.initials: JF
authors.lastname: Uthe
authors.forename: C J
authors.initials: CJ
authors.lastname: Musial
mesh_terms: D000818:Animals; D049872:Bivalvia / Q000378:metabolism; D008401:Gas Chromatography-Mass Spectrometry; D008121:Nephropidae / Q000378:metabolism; D011083:Polycyclic Compounds / Q000032:analysis*; D012758:Shellfish / Q000032:analysis*; D013056:Spectrophotometry, Ultraviolet; D014873:Water Pollutants / Q000032:analysis*; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D011083:Polycyclic Compounds; D014873:Water Pollutants; D014874:Water Pollutants, Chemical