| 毒死蜱和氯氰菊酯的辐射降解及产物特性研究 |
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| 引用本文： | 张庆芳,王锋,哈益明. 毒死蜱和氯氰菊酯的辐射降解及产物特性研究[J]. 中国农业科学, 2010, 43(5): 1041-1049. DOI: 10.3864/j.issn.0578-1752.2010.05.020 |
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| 作者姓名： | 张庆芳 王锋 哈益明 |
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| 作者单位： | （中国农业科学院农产品加工研究所） |
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| 基金项目： | 国家“十一五”科技支撑计划项目(2006BAK02A18-4) |
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| 摘 要： | 【目的】探讨γ射线辐射对毒死蜱和氯氰菊酯的辐解效果及产物毒性,为辐射技术用于控制食品中的农药残留提供理论及实践依据。【方法】通过2、4、6、8和12 kGy剂量辐射毒死蜱和氯氰菊酯水溶液,研究农药的辐解效果;通过8和32 kGy剂量辐射,研究农药的主要辐解产物及毒性。【结果】4 kGy剂量辐射,毒死蜱的降解率在98%;12 kGy剂量辐射,氯氰菊酯的降解率在84%;通过GC/MS分析得出4种毒死蜱主要辐解产物和2种氯氰菊酯主要辐解产物。【结论】辐射能有效去除水溶液中的毒死蜱和氯氰菊酯。毒死蜱产物3,5,6-三氯吡啶酚与前人研究的毒死蜱在环境水体中水解产物相同,其毒性小于毒死蜱;产物硫特普毒性略高于毒死蜱。氯氰菊酯辐射产物苯氧基苯甲醛与前人研究的降解酶降解氯氰菊酯的产物相同,其毒性要小于氯氰菊酯;产物苯氧基苯乙腈毒性也小于氯氰菊酯。
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| 关 键 词： | 毒死蜱 氯氰菊酯 辐射 辐解产物 毒性 |
| 收稿时间： | 2009-06-30; |
Research on Irradiation Degradation and Products Characteristics of Chlorpyrifos and Cypermethrin |
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| ZHANG Qing-fang,WANG Feng,HA Yi-ming. Research on Irradiation Degradation and Products Characteristics of Chlorpyrifos and Cypermethrin[J]. Scientia Agricultura Sinica, 2010, 43(5): 1041-1049. DOI: 10.3864/j.issn.0578-1752.2010.05.020 |
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| Authors: | ZHANG Qing-fang WANG Feng HA Yi-ming |
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| Affiliation: | ZHANG Qing-fang,WANG Feng,HA Yi-ming (Institute of Agro-Food Science & Technology,Chinese Academy of Agricultural Sciences,Beijing 100193) |
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| Abstract: | Objective In order to provide a theoretical and practical basis for application of radiation technology in controlling pesticide in food,the irradiation degradation effect and radiolysis products toxicity of chlorpyrifos and cypermethrin were studied.Method By irradiating chlorpyrifos and cypermethrin water-solution at the doses of 2,4,6,8,and 12 kGy,the irradiation degradation effect was studied.Result The chlorpyrifos degradation rate was 98% at the dose of 4 kGy;the cypermethrin degradation rate was 84% ... |
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| Keywords: | chlorpyrifos cypermethrin irradiation radiolysis products toxicity |
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