Biomaterial Database

Analysis of some older Scandinavian formulations of 2,4-dichlorophenoxy acetic acid and 2,4,5-trichlorophenoxy acetic acid for contents of chlorinated dibenzo-p-dioxins and dibenzofurans. 1979

A Norström, and C Rappe, and R Lindahl, and H R Buser

Ten samples of older formulations of 2,4,5-trichlorophenoxy acetic acid and 2,4-dichlorophenoxy acetic acid used in Sweden were analyzed for chlorinated dibenzo-p-dioxins and dibenzofurans. The analyses were performed with gas chromatography/mass spectrometry with a high resolution glass capillary column for maximum isomeric separation and sensitivity. The detection limit was 0.01-0.05 ppm. The amounts of contaminants were of the same order of magnitude as that found earlier in European samples with later production dates (late 1960s and 1970s).

UI	MeSH Term	Description	Entries
D002621	Chemistry	A basic science concerned with the composition, structure, and properties of matter; and the reactions that occur between substances and the associated energy exchange.
D002849	Chromatography, Gas	Fractionation of a vaporized sample as a consequence of partition between a mobile gaseous phase and a stationary phase held in a column. Two types are gas-solid chromatography, where the fixed phase is a solid, and gas-liquid, in which the stationary phase is a nonvolatile liquid supported on an inert solid matrix.	Chromatography, Gas-Liquid,Gas Chromatography,Chromatographies, Gas,Chromatographies, Gas-Liquid,Chromatography, Gas Liquid,Gas Chromatographies,Gas-Liquid Chromatographies,Gas-Liquid Chromatography
D004147	Dioxins	A family of compounds that contain the 1,4-dioxin structure. Many specific dioxin derivatives are listed as CARCINOGENS; TERATOGENS; or MUTAGENS.	Dioxin
D000072317	Polychlorinated Dibenzodioxins	Dibenzodioxin derivatives that contain multiple chloride atoms bound to the benzene ring structures.	TCDD,Tetrachlorodibenzodioxin,2,3,7,8-Tetrachlorodibenzo-p-dioxin,Chlorinated Dibenzo-p-dioxins,Dibenzo(b,e)(1,4)dioxin, 2,3,7,8-tetrachloro-,PCDD,Polychlorinated Dibenzo-p-dioxins,Polychlorinated Dibenzodioxin,Polychlorodibenzo-4-dioxin,Polychlorodibenzo-p-dioxin,Tetrachlorodibenzo-p-dioxin,Chlorinated Dibenzo p dioxins,Dibenzo-p-dioxins, Chlorinated,Dibenzo-p-dioxins, Polychlorinated,Dibenzodioxin, Polychlorinated,Dibenzodioxins, Polychlorinated,Polychlorinated Dibenzo p dioxins,Polychlorodibenzo 4 dioxin,Polychlorodibenzo p dioxin,Tetrachlorodibenzo p dioxin
D000072338	Dibenzofurans, Polychlorinated	Dibenzofurans that contain chloride atoms bound to the aromatic rings of the structure.	Chlorinated Dibenzofurans,Chlorodibenzofurans,Polychlorinated Dibenzofurans,Dibenzofurans, Chlorinated
D001572	Benzofurans	Compounds that contain a BENZENE ring fused to a furan ring.	Coumarones,Diphenylbenzofuran
D013058	Mass Spectrometry	An analytical method used in determining the identity of a chemical based on its mass using mass analyzers/mass spectrometers.	Mass Spectroscopy,Spectrometry, Mass,Spectroscopy, Mass,Spectrum Analysis, Mass,Analysis, Mass Spectrum,Mass Spectrum Analysis,Analyses, Mass Spectrum,Mass Spectrum Analyses,Spectrum Analyses, Mass
D013548	Sweden	Country in northern Europe, bordering the Baltic Sea, between Finland and Norway. The capital is Stockholm.
D015084	2,4-Dichlorophenoxyacetic Acid	An herbicide with irritant effects on the eye and the gastrointestinal system.	2,4-D,2,4-Dichlorophenoxyacetic Acid, Ammonium Salt,2,4-Dichlorophenoxyacetic Acid, Lithium Salt,2,4-Dichlorophenoxyacetic Acid, Potassium Salt,2,4-Dichlorophenoxyacetic Acid, Sodium Salt,Monosan,2,4 Dichlorophenoxyacetic Acid
D015085	2,4,5-Trichlorophenoxyacetic Acid	An herbicide with strong irritant properties. Use of this compound on rice fields, orchards, sugarcane, rangeland, and other noncrop sites was terminated by the EPA in 1985. (From Merck Index, 11th ed)	2,4,5-T