固相微萃取/气相色谱-质谱检测纺织品中有机磷农药残留  

Analysis of Seven Organophosphorus Pesticide Residues in Textiles by Gas Chromatography-Mass Spectrometry with Solid-phase Microextraction

作　　者：汪丽[1] 蔡依军 户献雷[1] 张鹏 阮文红[1] 

机构地区：[1]中山大学化学与化学工程学院,广东广州510275 [2]广州市纤维产品检验院,广东广州510220

出　　处：《分析测试学报》2007年第3期413-416,共4页Journal of Instrumental Analysis

基　　金：国家自然科学基金资助项目(50473019)

摘　　要：采用PDMS萃取纤维一次吸附富集纺织品中马拉硫磷、甲基对硫磷、敌敌畏、三唑磷、对硫磷、喹硫磷、二嗪磷7种有机磷农药,在气相色谱-质谱(GC-MS)进样口热解吸后进行定性定量检测。筛选了几种商品化的萃取纤维,并优化了萃取时间、萃取温度、吸附时间、盐浓度以及pH值等萃取条件。本方法操作简单、快速、环保,检出限低,可适用于生态纺织品中物质的快速检测。Seven organophosphorus pesticide residues, namely malathion, parathion-methyl, dichlorvos, triazophos, parathion, quinalphos and diazinon in textiles were extracted with solid-phase microextraction technique and determined by gas chromatography -mass spectrometry. The optimum conditions, such as extraction time and temperature, desorption time, solution pH and salt concentration were studied. The detection limits were less than 20 ng/g for all the pesticides. The developed method is easy to operate, rapid and environmental friendly.

关 键 词：固相微萃取 有机磷 农药残留 纺织品 气相色谱-质谱 

分 类 号：O657.33[理学—分析化学] TE626.21[理学—化学]