期刊
JOURNAL OF CHROMATOGRAPHY A
卷 1216, 期 15, 页码 3217-3222出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.chroma.2009.02.022
关键词
Photodegradation; Microbiological degradation; Pirimicarb insecticide; Liquid chromatography; Ion-trap mass spectrometry
资金
- National Nature Sciences Foundation of China [20735002, 20877019]
- Key Natural Sciences Foundation of Fujian Province, China [D0520001]
The intermediates of photodegradation and microbial. degradation of pirimicarb insecticide were investigated by liquid chromatography coupled with ion-trap mass spectrometry (LC-IT-MS). Different intermediates were detected in the photodegradation and microbial degradation of pirimicarb. In the photodegradation of pirimicarb in aqueous solution 2-dimethylamino-5,6-dimethyl-4-hydroxypyrimidine (MW=167), 2-methylamino-5,6-dimethylpyrimidin-4-yl-dimethylcarbamate (MW=224) and 2-formylamino-5,6-dimethylpyrimidin-4-yl-dimethylcarbamate (MW=252) were the main products. It was found that 2-dimethylamino-5,6-dimethyl-4-hydroxypyrimidine (MW = 167) was the major product in the microbial degradation of pirimicarb in soil. (C) 2009 Elsevier B.V. All rights reserved.
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