| 乐果在大王椰子中的残留检测与消解动态 |
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| 引用本文： | 刘新清,翁群芳,刘承兰.乐果在大王椰子中的残留检测与消解动态[J].广东农业科学,2009(11):94-96. |
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| 作者姓名： | 刘新清 翁群芳 刘承兰 |
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| 作者单位： | 天然农药与化学生物学教育部重点实验室/华南农业大学昆虫毒理研究室,广东,广州,510642 |
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| 摘 要： | 采用气相色谱法测定分析了乐果在大王椰子中的残留和消解动态,结果表明,乐果施于大王椰子根部,容易被吸收,施药1 d后就有吸收,5 d后达到最大值,半衰期2.21 d,14 d后残留显著降低,21 d后消解到≤0.0060 mg/kg.施药1 d后到10 d大王椰子中的乐果残留可有效防治椰心叶甲.
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| 关 键 词： | 大王椰子 乐果 残留检测 消解动态 |
Detection of dimethoate residue and study on its dynamic degradation in Royal Palm |
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| LIU Xin-qing,WENG Qun-fang,LIU Cheng-lan.Detection of dimethoate residue and study on its dynamic degradation in Royal Palm[J].Guangdong Agricultural Sciences,2009(11):94-96. |
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| Authors: | LIU Xin-qing WENG Qun-fang LIU Cheng-lan |
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| Institution: | LIU Xin-qing,WENG Qun-fang,LIUCheng-lan(Key Lab.of Natural Pesticide and Chemical Biology,Ministry of Education/Lab.of Insect Toxicology,South China Agricultural University,Guangzhou 510642,China) |
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| Abstract: | The dynamic and residues of dimethoate in royal palm were determined by GC.The results showed that dimethoate was absorbed easily,the residue of dimethoate was detected in the root of Royal Palm at 24 h after sprayed,the maximal concentrations of dimethoate was detected after 5 days.The residue degradation equations dimethoate in Royal Palm was C_t=2.0813e~(-0.3130t),and the half lives was 2.1d.The residue of dimethoate in Royal palm Was under the level of detection (≤0.0060 mg/kg)after 21 d.The residues of dimethoate in Royal Palm could controlled Brontispa longissima(Gestro)effectively in 10 days after sprayed. |
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| Keywords: | Royal Palm dimethoate residue analysis degradation |
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