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Position: Home > Articles > Study on the Half-life Period of Organophosphorus Pesticide Dichlorvos and Dimethoate on Chinese Cabbage Journal of Anhui Agricultural Sciences 2011,39 (27) 16640+16643

有机磷农药敌敌畏和乐果在大白菜表面半衰期的研究

作  者:
王清路;张玉军;李俏俏
单  位:
山东万杰医学院生物化学教研室
关键词:
有机磷农药;荧光光谱;半衰期;敌敌畏;乐果
摘  要:
[目的]了解有机磷农药敌敌畏和乐果在大白菜叶面的动态残留情况。[方法]对敌敌畏和乐果的荧光光谱特征进行了分析,并利用荧光光谱法测定了大白菜叶面敌敌畏和乐果的半衰期。[结果]敌敌畏和乐果均以280 nm波长光线激发时,敌敌畏的发射峰在328nm处,而乐果在574 nm处。大白菜叶面敌敌畏的半衰期约为48 h,而乐果约为72 h。[结论]为蔬菜上的农药残留检测提供了参考。
译  名:
Study on the Half-life Period of Organophosphorus Pesticide Dichlorvos and Dimethoate on Chinese Cabbage
作  者:
WANG Qing-lu et al(Biochemical Room,Shandong Wanjie Medical College,Zibo,Shandong 255213)
关键词:
Organophosphorus pesticide;Fluorescence spectral;Half-life;Dichlorvos;Dimethoate
摘  要:
[Objective] The aim was to understand dynamic residues of organic phosphorus pesticide dichlorvos and dimethoate on the Chinese cabbage leaf.[Method] The fluorescence characteristics of dichlorvos and dimethoate were first analyzed,and then the half-life period of dichlorvos and dimethoate on Chinese cabbage leaf was determined by fluorescence spectrometry.[Result] The emission peaks of dichlorvos and dimethoate presented to 328 and 574 nm respectively when they were excited by 280 nm ray.The half-life period of dichlorvos and dimethoate on Chinese cabbage leaf were about 48 and 72 h,respectively.[Conclusion] The research provides reference for the detection of pesticide residue on vegetables.

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