固相微萃取/二氧化锡气体传感器联用技术对果蔬中有机磷农药残留的快速检测  

Fast Detection of Organophosphor Pesticide Residue in Vegetable by SnO_2 Gas Sensor Coupled with Solid Phase Microextraction

作　　者：黄行九[1] 王连超[1] 孙宇峰[1] 孟凡利[2] 刘锦淮[2] 

机构地区：[1]中国科学技术大学化学系,合肥230026 [2]中国科学院智能机械研究所,合肥230031

出　　处：《分析化学》2005年第3期363-365,共3页Chinese Journal of Analytical Chemistry

基　　金：国家自然科学基金资助项目(No.602774061)

摘　　要：研究了固相微萃取(SPME)和二氧化锡气体传感器的联用技术对果蔬中有机磷农药残留乐果、氧乐果、甲胺磷、乙酰甲胺磷、马拉硫磷、敌百虫等的快速检测。结果表明,在85℃下,解吸8min,二氧化锡气体传感器在2min内完成对有机磷农药残留的快速检测。零解吸时间测量的甲胺磷的动态响应曲线表明,SPME/二氧化锡气体传感器联用技术对分析SPME的解吸平衡非常有利。Fast detection of organophosphor pesticide residue such as dimethoate, omethoate, acephatemet, acephate, malathion, trichlorphon in vegetable by tin oxide gas sensor coupled with solid phase microextraction (SPME) was investigated. Experimental results showed that the pesticide residue were detected in 2 min the conditions in this study ( the desorption temperature was 85 degrees C and the time was 8 min). The dynamic response of acephatemet showed that SnO2/SPME was beneficial to analysis the desorption equilibrium of SPME.

关 键 词：有机磷农药残留 快速检测 联用技术 甲胺磷 乐果 固相微萃取 SPME 零解 二氧化锡 解吸 

分 类 号：TS255[轻工技术与工程—农产品加工及贮藏工程]