毕业论文 蔬菜中有机磷农药残留量的检测与分析.doc

本科生毕业论文
蔬菜中有机磷农药残留量的检测与分析
蔬菜中有机磷农药残留量的检测与分析
摘要
有机磷农药作为一类高效、广谱的杀虫剂正被广泛地用于农业防害以及家庭、仓储等的杀虫,但大量使用后产生的环境危害也日益严重。农药的急性中毒,特别是果蔬食
品污染后引发的群体中毒事件屡有发生。因此建立果蔬有机磷残留检测技术是很有必要
的。
本课题采用乙脂浸提,同时对茄果类、瓜类、甘蓝类、白菜类、绿叶类、豆类 6
类蔬菜共 24 个品种,采用气相色谱法检测有机磷中高毒农药甲胶磷、氧化乐果、甲拌
磷、对硫磷、***对硫磷、毒死蝉、敌敌畏、乙酌甲胶磷、三略磷、杀螺硫磷、水胶硫磷等 13 种农药残留情况。本次检测蔬菜样品 24 个,其中检出含有被测农药样品 8 个,检出率 33. 3%; 被测农药不合格的样品 3 个,总合格率 87. 5%。有 5 种高毒农药被检出,其中毒死蝉的检出率最高,达到 25%,氧化乐果的检出率为 16. 7%,甲胶磷、水胶硫磷、乙酌甲胶磷均为 8. 3%。
关键词: 气相色谱:有机磷农药:蔬菜
Vegetables in anic phosphorus pesticide residues in the detection and analysis
Abstract
ηle ganophosphorus agricultural chemicals take one kind highly effìective,Guang pu 由e pesticide widely to use in agricultural against evil as well as 由e family,the warehousing and so on insect disinfestation,but uses after massively,produces 由e environment harm day by day is also serious. Agricultural chemicals acute poisoning,after
specially 仕uits and vegetables food contamination,initiates munity poison event
sometimes occurs. Therefore the establishment 台山ts and vegetables ganophosphorus remains the examination technology to have the necessity very much. 也isωpic uses the methyl cyanide to soak raises ,simultaneously to 由e eggplant fruit class,the melon class, 由e sea cabbage class,the cabbage class,the green leaf class,the legumes 6 kind of
vegetables altogether 24 varieties,uses in the gas phase chromatography examination
ganophosphorus 由e high poisonous agricultural chemicals methylamine phosphorus,the oxidized rogor,出e 也imet,由ep盯a由ion,the methyl para由ion,ωkill by poison 由e tick, 也e phosphate insecticide,the acetyl methylamine pho叩horus,由e triazole phosphorus,ω kill 由e snout moth sulfur phosphorus,Shui Anliu 由e phosphorus and so on 13 挝nd of pesticide residue situation. This examination vegetables sample 24,picks out includes is measured agricultural chemicals sample 8,detection rate %; Is measured agricultural chemicals unqualified sample 3,total qualified rate %. Some 5 kind ofhigh poisonous
agricultu