纳米SiO_2膜新型萃取头固相微萃取测定蔬菜中5种农药残留量的研究  

Development of new solid-phase microextraction fibers using nano-SiO_2 for the determination of 5 pesticides residues in vegetables

作　　者：郑向华[1] 黄佳蓉[2] 吴雅玲[2] 张茂升[2] 

机构地区：[1]厦门出入境检验检疫局技术中心食化科,厦门361012 [2]漳州师范学院化学与环境科学系,漳州363000

出　　处：《分析试验室》2009年第8期75-78,共4页Chinese Journal of Analysis Laboratory

基　　金：福建省教育厅科技项目(JA07156);厦门出入境检验检疫局科技计划(2006XK03)项目资助

摘　　要：建立了以纳米SiO2膜为萃取头涂层的固相微萃取(SPME)-气相色谱(GC)联用测定蔬菜中5种农药残留(p,p′-DDD,p,p′-DDE,o,p′-DDT,p,p′-DDT,联苯菊酯)的新方法。探讨并优化了萃取时间、萃取温度和转子转速等参数。A new method used for the determination of 5 pesticides residues （p, p′-DDD, p, p′-DDE, o, p′-DDT, p, p′-DDT, bifenthrin） from vegetable samples coupling solid-phase microextraction using nano-SiO2 as its fibers with gas chromatography was presented. The experimental parameters, such as extraction time, extraction temperature, agitation and desorption time were controlled and optimized. And the new method was proved to be a fast and simple technique for the preconcentration of pesticides residues from vegetable samples.

关 键 词：固相微萃取 纳米SIO2 农药残留 

分 类 号：O657.7[理学—分析化学]