| 乙酰甲胺磷在辣椒上的残留消解动态研究 |
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| 引用本文： | 陈恩祥,周艳琳,陈新来,李宝林,马刚,王丽梅,唐文娟.乙酰甲胺磷在辣椒上的残留消解动态研究[J].安徽农业科学,2014(29):10177-10178. |
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| 作者姓名： | 陈恩祥 周艳琳 陈新来 李宝林 马刚 王丽梅 唐文娟 |
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| 作者单位： | 武威市农产品质量安全监督管理站,甘肃武威,733000;武威市农产品质量安全监督管理站,甘肃武威,733000;武威市农产品质量安全监督管理站,甘肃武威,733000;武威市农产品质量安全监督管理站,甘肃武威,733000;武威市农产品质量安全监督管理站,甘肃武威,733000;武威市农产品质量安全监督管理站,甘肃武威,733000;武威市农产品质量安全监督管理站,甘肃武威,733000 |
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| 基金项目： | 甘肃省科技支撑计划项目 |
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| 摘 要： | 目的]了解乙酰甲胺磷在辣椒上的残留消解规律。方法]采用田间试验和气相色谱分析方法,研究了30%乙酰甲胺磷乳油在辣椒上的消解动态和最终残留。结果]乙酰甲胺磷在辣椒中的初始沉积量因不同施药剂量存在较大差异,施药剂量越大,初始沉积量越高;残留消解动态符合一级动力学方程;1 000倍液和500倍液2种施药量的降解速率基本相似,半衰期分别为1.6和1.7 d;乙酰甲胺磷在辣椒上的最大残留量(MRL值)推荐值为1 mg/kg,1 000倍液和500倍液茎叶喷雾后,农药残留量降解到该值时所需时间分别为1.5和2.3 d,符合蔬菜质量安全标准。结论]为乙酰甲胺磷在甘肃河西走廊及相似地区的科学合理使用提供了理论依据。
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| 关 键 词： | 乙酰甲胺磷 辣椒 残留 消解动态 |
Residues Degradation Dynamics of Acephate in Pepper |
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| Institution: | CHEN En-xiang, ZItOU Yan-lin, CHEN Xin-lai et al ( Supervision and Management Station of Agricultural Produces Quality and Safety of Wuwei City, Wuwei, Gansu 733000) |
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| Abstract: | The aim was to understand residues degradation dynamics of acephate in pepper. Method]The residue dynamics and final residues of 30% acephate EC in pepper were studied by field experiment and gas chromatography analysis. Result]The initial residues of30% acephate EC in pepper for different application dosages had relatively large difference; the initial residues increased with the increase of application dosages. Degradation dynamics was in conformity with the first-order dynamic equation. The degradability rates of different application dosages were similar,and the half-life were 1. 6 d and 1. 7 d in pepper when application dosages were 1 000 times and 500 times respectively.The maximum residue limit of 30% acephate EC was recommended 1 mg /kg in pepper,and its degradation time were 1. 5 d and 2. 3 d respectively when application dosages were 1 000 times and 500 times,meeting the security standard of vegetables. Conclusion]The results provide theoretical basis for the rational use of acephate along the Hexi Corridor in Gansu as well as similar areas. |
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| Keywords: | Acephate Pepper Residues Degradation dynamics |
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