成都市春季市售韭菜中农药残留量的初步调查  

Investigation of pesticide residues from Chengdu market chives in spring season

作　　者：罗丽[1] 程温莹[1] 万新南[1] 冉祥滨[1] 马莹[1] 

机构地区：[1]成都理工大学环境与土木工程学院,成都610059

出　　处：《桂林工学院学报》2006年第4期555-558,共4页Journal of Guilin University of Technology

基　　金：国土资源部地质大调查子项目资助项目(121201511202)

摘　　要：为了解食物中农药污染的现状,对成都市售韭菜中农药残留进行了调查.对2004年春季成都市11个菜市场市售韭菜中甲基对硫磷农药的残留量进行测定:蔬菜试样采用乙腈提取、再浓缩有机相,然后直接用气相色谱/质谱(GC/MS)的选择离子监测(SIM)方式测定甲基对硫磷含量.韭菜中甲基对硫磷的标准添加回收率为83.5%,可满足这种杀虫剂在蔬菜中残留量检测的要求.结果表明,在当前防治蔬菜病虫害中仍在使用高毒有机磷农药杀虫剂甲基对硫磷,对蔬菜等食品的安全性应给予充分重视.Water, soil and crops are polluted by widespread use of pesticides. In order to understand the status of pesticide contamination in food, the pesticide residue in Chengdu market Chinese chives is investigated. The determination results of methyl parathion on Chinese chives sold at the 11 markets of Chengdu in spring season of 2004 are introduced. In this investigation, the residues are extracted by acetonitrile from the test specimen of vegetables, and then the organic phase material concentrated. The content of methyl parathion in the organic phase material is detected by the Select Ion Monitoring （SIM） of GC/MS directly. The standard adding recovery ratio of methyl parathion on Chinese chives＇sample reaches 83.5%, and can meet the detecting requirement of residues for the pesticide in vegetables. The investigation of agricultural chemicals residue of methyl parathion in the market Chinese chives shows that the high poisonous organic phosphorus chemicals such as methyl parathion are still used for fighting against vegetable pests at present. The conclusion reminds us to pay more attentions on the food safety including vegetables.

关 键 词：甲基对硫磷 残留分析 气相色谱/质谱 选择离子监测 韭菜 成都 

分 类 号：X839.2[环境科学与工程—环境工程] S481.8[农业科学—农药学]