Problems in the determination of polychlorinated biphenyls.
D000818:Animals; D002845:Chromatography; D005399:Fishes; D008722:Methods; D009281:Naphthalenes / Q000032:analysis; D010575:Pesticides / Q000032:analysis*; D011078:Polychlorinated Biphenyls / Q000032:analysis*; D013056:Spectrophotometry, Ultraviolet; D014877:Water Pollution, Chemical / Q000032:analysis
D009281:Naphthalenes; D010575:Pesticides; D011078:Polychlorinated Biphenyls