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新型固相萃取器用于污染水样中痕量杀虫剂的浓缩及热解吸气相色谱-质谱分析(英文)

环境化学 2003年第3期22卷 267-270页

作者： WANGLi-Li HOSAKAAkihiko WATANABEChuichi 浙江工业大学化学工程学院应用化学系杭州310014 尖端实验室福岛963-8862 日本

A novel type of solid phase extraction element named“Magic Chemisorber” is developed for sorptive enrichment of dilute analytes from aqueous samples with high extraction efficiencies due to its capacious layer of sorbent *** extraction element combined with thermal desorption gas chromatography/mass spectrometry using a pyrolysis GC/MS system was applied to extract the pesticides from water samples over a concentration range of 10 -3 to 10 3 μg·l -1 .The method showed good li nearity for the tested concentration range with regression coefficients of 0 995 for over 5 *** of detection at a sub ng·l -1 (ppt)level were achieved and the reproducibility of the measurements was found to be fairly good,with relative standard deviation below 8%.

关键词：固相萃取器污染水样痕量分析杀虫剂浓缩热解吸气相色谱质谱

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