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阿维菌素在油菜和土壤中残留及降解行为研究

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袁蕾, 王会利, 李建中. 阿维菌素在油菜和土壤中残留及降解行为研究[J]. 环境化学, 2011, 30(2): 490-494.
引用本文: 袁蕾, 王会利, 李建中. 阿维菌素在油菜和土壤中残留及降解行为研究[J]. 环境化学, 2011, 30(2): 490-494.
shu
YUAN Lei, WANG Huili, LI Jianzhong. RESIDUE AND DISSIPATION KINECTICS OF ABAMECTIN IN COLE AND SOIL[J]. Environmental Chemistry, 2011, 30(2): 490-494.
Citation: YUAN Lei, WANG Huili, LI Jianzhong. RESIDUE AND DISSIPATION KINECTICS OF ABAMECTIN IN COLE AND SOIL[J]. Environmental Chemistry, 2011, 30(2): 490-494.
shu

阿维菌素在油菜和土壤中残留及降解行为研究

  • 1.

    中国科学院生态环境研究中心, 北京, 100085

RESIDUE AND DISSIPATION KINECTICS OF ABAMECTIN IN COLE AND SOIL

  • 1.

    Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China

  • 摘要: 在北京和山东两地对阿维菌素在油菜和土壤中的残留以及降解动态进行了研究.样品衍生化后用高效液相色谱-荧光检测器对阿维菌素进行分析,在0.005 mg · kg-1—0.100 mg · kg-1的浓度下,该方法在油菜和土壤中的回收率分别为88.3%—99.3%和85.9%—95.9%,相对标准偏差分别为4.0%—7.2%和4.4%—6.5%.消解动态结果表明,阿维菌素在油菜和土壤中的消解符合一级动力学方程,半衰期分别为1.7—1.8d和3.5—3.9d.最终残留试验结果表明,在施药浓度为13.5 g (a.i.) · ha-1和27.0 g (a.i.)·ha-1,施药2—3次,每次间隔7d的情况下,末次药后3d,油菜中阿维菌素残留量已低于国家制定的MRL值0.05 mg · kg-1,因此推荐阿维菌素在油菜上的安全间隔期为3d.
    Abstract: Field trial was conducted to study the residue and dissipation kinetics of abamectin in cole and soil in Beijing and Shandong. A high performance liquid chromatography(HPLC) with fluorescence detector(FLD) was employed for the determination of abamectin. At fortified level of 0.005—0.1 mg·kg-1, average recoveries of abamectin in cole and soil were 88.3%—99.3% and 85.9%—95.9%, with relative standard deviation(RSD) of 4.0%—7.2% and 4.4%—6.5%, respectively. Results of dissipation study showed that the degradation of abamectin in cole and soil fit first-order model well and half lives derived were 1.7—1.8d and 3.5—3.9d, respectively in cole and soil. At doses of 13.5 g (a.i.)·ha-1 and 27.0 g (a.i.)·ha-1, sprayed 2—3 times, and a 7d interval, abamectin residue in cole was below the MRL of 0.05 mg · kg-1, A preharvest interval (PHI) of 3 days is therefore recommended based on our study.
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    [2] Kaspi R, Parrella M P. Abamectin compatibility with the leafminer parasitoid Diglyphus isaea[J]. Biological Control, 2005, 35(2):172-179
    [3] Weintraub P G. Effect of cyromazine and abamectin on the pea leafminer Liriomyza huidobrensis (Diptera:Agromyzidae) and its parasitoid Diglyphus isaea (Hymenoptera:Eulophidae) in potatoes [J]. Crop Prot, 2001, 20(3):207-213
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    [7] 谢显传, 张少华, 王冬生,等. 露地和大棚条件下阿维菌素在蔬菜作物上的残留消解动态比较[J]. 中国农业科学, 2008, 41(10):3399-3404
    [8] 张怡, 张宗山, 王芳,等. 阿维菌素在枸杞果实中的残留动态[J]. 农药, 2007,46(1):46-48
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  • 收稿日期:  2010-01-26
袁蕾, 王会利, 李建中. 阿维菌素在油菜和土壤中残留及降解行为研究[J]. 环境化学, 2011, 30(2): 490-494.
引用本文: 袁蕾, 王会利, 李建中. 阿维菌素在油菜和土壤中残留及降解行为研究[J]. 环境化学, 2011, 30(2): 490-494.
shu
YUAN Lei, WANG Huili, LI Jianzhong. RESIDUE AND DISSIPATION KINECTICS OF ABAMECTIN IN COLE AND SOIL[J]. Environmental Chemistry, 2011, 30(2): 490-494.
Citation: YUAN Lei, WANG Huili, LI Jianzhong. RESIDUE AND DISSIPATION KINECTICS OF ABAMECTIN IN COLE AND SOIL[J]. Environmental Chemistry, 2011, 30(2): 490-494.
shu

阿维菌素在油菜和土壤中残留及降解行为研究

  • 1. 中国科学院生态环境研究中心, 北京, 100085
  • 收稿日期:  2010-01-26

摘要: 在北京和山东两地对阿维菌素在油菜和土壤中的残留以及降解动态进行了研究.样品衍生化后用高效液相色谱-荧光检测器对阿维菌素进行分析,在0.005 mg · kg-1—0.100 mg · kg-1的浓度下,该方法在油菜和土壤中的回收率分别为88.3%—99.3%和85.9%—95.9%,相对标准偏差分别为4.0%—7.2%和4.4%—6.5%.消解动态结果表明,阿维菌素在油菜和土壤中的消解符合一级动力学方程,半衰期分别为1.7—1.8d和3.5—3.9d.最终残留试验结果表明,在施药浓度为13.5 g (a.i.) · ha-1和27.0 g (a.i.)·ha-1,施药2—3次,每次间隔7d的情况下,末次药后3d,油菜中阿维菌素残留量已低于国家制定的MRL值0.05 mg · kg-1,因此推荐阿维菌素在油菜上的安全间隔期为3d.

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