title: Analysis of oxidative degradation products of 2,4,6-trichlorophenol treated with air ions.
abstract: The analysis of oxidative degradation products of 2,4,6-trichlorophenol (TCP) treated with air ions, which are generated by electric discharge, is reported. Due to the complex nature of the degradation products, a combination of different detection techniques was employed to characterize them. The oxidative degradation of TCP is usually dependent on the treating approaches, and in this system, a stepwise degradation, beginning with the formation of a major product 2,6-dichloro-1,4-benzenediol as well as other minor ones (e.g., 3,5-dichlorocatechol) via substitution, is first proposed through a detailed analysis of GC/MS, etc., though some chromogenic quinones can transiently be present. Furthermore, high dechlorination (53%) was observed for TCP after a 60-min treatment, indicating that air ions can serve as an efficient dechlorination means.
authors.affiliation: Center for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing. mhmliang@public.bta.net.cn
authors.forename: H
authors.initials: H
authors.lastname: Ma
authors.forename: J
authors.initials: J
authors.lastname: Wohlers
authors.forename: U
authors.initials: U
authors.lastname: Meierhenrich
authors.forename: A
authors.initials: A
authors.lastname: Bernecker
authors.forename: V
authors.initials: V
authors.lastname: Suling
authors.forename: W
authors.initials: W
authors.lastname: Thiemann
mesh_terms: D000388:Air; D000393:Air Pollutants / Q000032:analysis*; D002733:Chlorophenols / Q000032:analysis* / Q000737:chemistry; D004560:Electricity; D008401:Gas Chromatography-Mass Spectrometry; D007477:Ions; D009682:Magnetic Resonance Spectroscopy; D010084:Oxidation-Reduction
chemical_list: D000393:Air Pollutants; D002733:Chlorophenols; D007477:Ions; C024564:2,4,6-trichlorophenol