| 灭幼脲类杀虫剂在环境中的降解机理研究 |
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| 引用本文： | 刘国光,周庆祥,吕文英,刘梅.灭幼脲类杀虫剂在环境中的降解机理研究[J].河南师范大学学报(自然科学版),2000,28(3):51-56. |
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| 作者姓名： | 刘国光 周庆祥 吕文英 刘梅 |
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| 作者单位： | 1. 河南师范大学化学与环境科学学院,河南省高等学校环境科学与工程重点学科开放实验室,453002,河南,新乡
2. 焦作教育学院理化生系 |
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| 基金项目： | 河南省自然科学基金资助项目!( 9540 3 1 70 0 ) |
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| 摘 要： | 综述了灭幼脲类虫在环境中的水解、微生物降解和光解机理。指出：灭幼脲类杀虫剂的水解、微生物降解和光解机理分别为碱催化的新核取代反应、酶催化的水解反应及自由基反应。灭幼脲类虫剂分子中都有一个 基团，其中三个Ｃ－Ｎ键随分子结构中其它基团和外界影响因素的不同有很大的差异，从而决定了灭幼脲类杀虫剂降解产物的多样性。
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| 关 键 词： | 灭幼脲类杀虫剂 微生物降解 光化学降解 环境 |
| 修稿时间： | 2000-02-16 |
Study on the Degradation Mechanisms of Halidephenyl-halidebenzoyl Urea Insecticides in the Environment |
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| LIU Guo-guang,ZHOU Qing-xiang,LU Wen-ying,LIU Mei.Study on the Degradation Mechanisms of Halidephenyl-halidebenzoyl Urea Insecticides in the Environment[J].Journal of Henan Normal University(Natural Science),2000,28(3):51-56. |
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| Authors: | LIU Guo-guang ZHOU Qing-xiang LU Wen-ying LIU Mei |
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| Abstract: | The degradation mechanisms of Halidephenyl-halidebenzoyl Urea Insecticides, including DFB,PH6038 and CCU,a new kinds of insect growth regulators, have been presented in this paper. The mechanisms of hydrolysis, microbialdegradation and photodegradation are base catalyzed nucleophilic substitution reaction, enzyme catalyzed hydrolysis, free radical reaction respectively. There are three C-N bonds in the molecules of these insecticides, which show different activity with the different influential factors, so varieties of degradation products are found in different degradation situation. |
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| Keywords: | Halidephenyl halidebenzoyl Urea Insecticides Hydrolysis Microbialdegradation Photodegradation |
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