固相微萃取气质联法测定丙烯腈迁移量

Determination of Acrylonitrile Migration by SPME- GCMS

丙烯腈单体是剧毒化学品,为了快速,高效,绿色的检测食品接触材料中的丙烯腈迁移量,对SPME-GCMS的条件如萃取时间温度,萃取纤维类型,解析时间和GCMS条件进行优化,建立了自动固相微萃取-气象色谱-质联用谱（SPMEGCMS）测定食品模拟夜中的丙烯腈迁移量的分析方法,方法线性范围0.01~0.20 mg/kg,线性相关系数大于0.999,检出限达到0.01 mg/kg,重复性实验得到相对标准偏差小于5%,加标回收率为85%~115%.满足食品接触材料中的丙烯腈迁移量检测要求。

Acrylonitrile monomer is highly toxic chemicals. In order to fast,efficient,green food contact materials testing acrylonitrile migration,SPME- GCMS conditions,such as temperature extraction time,extraction fiber type,resolution time and GCMS conditions,were optimized,SPME- GCMS analytical method determination of acrylonitrile in food simulants night of migration was established,it reached good linearity in the concentration range of 0. 01 ~ 0. 20 mg / kg,the correlation coefficient was greater than 0. 999,the detection limit was 0. 01 mg / kg,the relative standard deviations was below 5%,the recovery of spiked sample was 85% ~ 115%. The result showed that this method was accurate and reliable,and it was satisfy for detection requirements.