期刊
RADIATION PHYSICS AND CHEMISTRY
卷 67, 期 3-4, 页码 527-530出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0969-806X(03)00099-9
关键词
diazinon; organophosphorus pesticides; X-ray; degradation
The degradation of organophosphorus pesticide diazinon in aqueous media with a white X-ray beam from a conventional X-ray source was studied. The concentration of the pesticide in the solution (40 mgdm(-3)) decreases exponentially with the exposure time, i.e. with the absorbed dose: 50% degradation is obtained at the dose of about 160 Gy. The compounds detected in the irradiation samples suggest that diazinon is converted mainly into 2-isopropyl-4-methyl-6-hydroxypyrimidine, which is also its main hydrolysis product. (C) 2003 Elsevier Science Ltd. All rights reserved.
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