[1]蔡恩兴,郭建辉,陈丽萍,等.毒死蜱在菜用大豆上残留动态及安全使用技术[J].大豆科学,2008,27(05):823-827.[doi:10.11861/j.issn.1000-9841.2008.05.0823]
　CAI En-xing,GUO Jian-hui,CHEN Li-ping,et al.Dynamics of Chlorpyrifos Residue in Vegetable Soybean and Techniques for Its Safe Use[J].Soybean Science,2008,27(05):823-827.[doi:10.11861/j.issn.1000-9841.2008.05.0823]
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毒死蜱在菜用大豆上残留动态及安全使用技术

《大豆科学》[ISSN:1000-9841/CN:23-1227/S] 卷: 第27卷 期数: 2008年05期 页码: 823-827 栏目: 出版日期: 2008-10-25
Title:
Dynamics of Chlorpyrifos Residue in Vegetable Soybean and Techniques for Its Safe Use
文章编号:
1000-9841(2008)050823-05
作者:
蔡恩兴; 郭建辉; 陈丽萍; 张奇泓
漳州市农业检验监测中心，福建 漳州363000
Author(s):
CAI En-xing; GUO Jian-hui; CHEN Li-ping; ZHANG Qi-hong
Zhangzhou Agricultural Test and Inspection Centre，Zhangzhou 363000，Fujian，China
关键词:
菜用大豆; 毒死蜱; 残留消解动态; 安全使用技术
Keywords:
Vegetable soybean; Chlorpyrifos; Residue dynamics; Techniques for safe use
分类号:
S565.1
DOI:
10.11861/j.issn.1000-9841.2008.05.0823
文献标志码:
A
摘要:
为了监测菜用大豆中毒死蜱的残留量及科学、安全使用毒死蜱防治菜用大豆上的害虫，确保产品质量安全，采用气相色谱法及田间试验方法，研究了毒死蜱在菜用大豆上的残留消解动态，并对其安全使用技术进行示范试验。结果表明：毒死蜱在菜用大豆上的原始沉积量较高，施用有效成分1.08 kg.hm-2的原始沉积量高于施用0.77 kg.hm-2，施用2次的高于施用1次。毒死蜱在菜用大豆上的残留消解动态均符合一级动力学方程，早季的消解速率快于晚季，早季的半衰期(DT50)为2.7 d，消解99%所需要的时间(T99)为18.2 d，而晚季的DT50为3.4~3.5 d，T99为22.7~23.5 d。安全使用技术示范试验结果显示，毒死蜱按常规使用剂量及施药方法，间隔7 d连续施用2次，施药后25 d、28 d的残留量平均分别为0.075 mg.kg-1和0.030 mg.kg-1，对照GB27632005中叶菜类蔬菜的MRL，以及日本、美国、欧盟的MRL，毒死蜱在菜用大豆上施药后25 d产品符合于我国的质量安全要求，28 d产品符合于日本、美国、欧盟规定的质量安全要求。
Abstract:
In order to monitor chlorpyrifos residue content in vegetable soybean,and apply chlorpyrifos scientifically and safely to control the pests in vegetable soybean，and insure the quality safety of products,the residue dynamics of chlorpyrifos in vegetable soybean was studied by the methods of gas chromatography and field experiment.In addition，techniques for safe use were explored in field demonstration.The results showed that initial chlorpyrifos residue on vegetable soybean was high.The chlorpyrifos residue was higher when treated with 1.08 kg.hm-2than treated with 0.77 kg.hm-2.Spraying twice led to higher chlorpyrifos residue than single spray.The dynamics of chlorpyrifos residue in vegetable soybean followed first order kinetics.The degradation rates was faster in the early season than in the late season.The half life time (DT50) and time needed for 99% degradation were 2.7 d and 18.2 d in the early season，and the figures were 3.4-3.5 d and 22.7-23.5 d respectively in the late season.In the field demonstration to explore techniques for safe use of chlorpyrifos，conventional application rate and spray method were adopted.Vegetable soybean received twice spray of 0.77 kg.hm-2of effective component of chlorpyrifos at 7 d intervals.Chlorpyrifos residues in vegetable soybean were all below 0.1 mg.kg-125 d after application,and all below 0.05 mg.kg-1after 28 d.The average residue content was 0.075 mg.kg-1and 0.030 mg.kg-1，respectively.According to GB2763-2005 (for leafy vegetable) and the MRL of Japan，USA and European Union，the products met the Chinese food safety standard after 25 d and met that of Japan，USA and European Union after 28 d.

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备注/Memo

基金项目：漳州市科技计划资助项目(Z03028)。

作者简介：蔡恩兴(1974-),男，农艺师, 现主要从事农产品质量安全和农药残留检测技术研究。

更新日期/Last Update: 2014-10-06