title: Kinetics and mechanisms of radiation-induced degradation of acetochlor.
abstract: The radiation-induced degradation of acetochlor was investigated in this work. In a mixed solvent composed of acetonitrile and water at a ratio of 20/80 in volume, the acetochlor degradation rate was proportional to the radiation dose rate and acetochlor concentration. The acetochlor degradation efficiency was higher under alkali conditions and lower under acidic conditions. The contribution to the acetochlor degradation by the radicals was in the order of: e(aq)->.OH>H.. The quantum efficiency ratios of .OH, e(aq)- and H. for the degradation of acetochlor were calculated as 1:3:1.
authors.affiliation: Laboratory of Environmental Engineering, School of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China.
authors.forename: Shao-Yang
authors.initials: SY
authors.lastname: Liu
authors.forename: You-Peng
authors.initials: YP
authors.lastname: Chen
authors.forename: Han-Qing
authors.initials: HQ
authors.lastname: Yu
authors.forename: Shu-Juan
authors.initials: SJ
authors.lastname: Zhang
mesh_terms: D002851:Chromatography, High Pressure Liquid; D003037:Cobalt Radioisotopes / Q000737:chemistry*; D005720:Gamma Rays; D006540:Herbicides / Q000737:chemistry* / Q000528:radiation effects; D006863:Hydrogen-Ion Concentration; D007700:Kinetics; D013056:Spectrophotometry, Ultraviolet; D014052:Toluidines / Q000737:chemistry* / Q000528:radiation effects
chemical_list: D003037:Cobalt Radioisotopes; D006540:Herbicides; D014052:Toluidines; C043377:acetochlor