1,4-二噁烷含量测定中固相微萃取头的选择研究  

Study on the Selectivity of SPME Fiber for the Determination of 1,4-Dioxane

作　　者：常宇文[1] 田野[1] 曹红[1] 周相娟[1] 赵玉琪[1] 李伟[1] 许华[1] 谢精精[1] 

机构地区：[1]北京市海淀区产品质量监督检验所,北京100094

出　　处：《分析测试学报》2008年第S1期130-133,共4页Journal of Instrumental Analysis

摘　　要：A method for the determination of 1,4-dioxane in washing food has been developed by using solid-phase microextraction technology coupled with gas chromatography-mass(SPME/GC-MS).The different SPME fibers were studied,in which the SPME of DVB/CAR/PDMS(50/30 μm) showed high sensitivity and selectivity for the determination of 1,4-dioxane.The calibration curve was y=3.53×105x+397 with the correlation coefficient of 0.998 8.The linear range was range of 0.05-50 mg/kg and the detection limit of 1,4-dioxane was 0.05 mg/kg with RSD of 1.01%(n=6).A method for the determination of 1,4-dioxane in washing food has been developed by using solid-phase microextraction technology coupled with gas chromatography-mass(SPME/GC-MS).The different SPME fibers were studied,in which the SPME of DVB/CAR/PDMS(50/30 μm) showed high sensitivity and selectivity for the determination of 1,4-dioxane.The calibration curve was y=3.53×105x+397 with the correlation coefficient of 0.998 8.The linear range was range of 0.05-50 mg/kg and the detection limit of 1,4-dioxane was 0.05 mg/kg with RSD of 1.01%(n=6).

关 键 词：1 4-dioxane SPME/GC-MS FIBER 

分 类 号：TQ649.7[化学工程—精细化工]