title: Ultratrace dioxin and dibenzofuran analysis: 30 years of advances.
authors.affiliation: Ontario Ministry of the Environment, Laboratory Services Branch, Rexdale, Canada.
authors.forename: R E
authors.initials: RE
authors.lastname: Clement
mesh_terms: D000818:Animals; D001572:Benzofurans / Q000032:analysis*; D004147:Dioxins / Q000032:analysis*; D008401:Gas Chromatography-Mass Spectrometry; D006801:Humans; D008832:Microchemistry; D000072317:Polychlorinated Dibenzodioxins / Q000032:analysis
chemical_list: D001572:Benzofurans; D004147:Dioxins; D000072317:Polychlorinated Dibenzodioxins; C023614:dibenzofuran