摘要
建立气相色谱-质谱联用仪测定高脂食品中14种光引发剂的方法。将均质后的试样经丙酮-正己烷(体积比2:8) 20℃提取15 min后,振荡离心,上清液采用HLB管进行净化,收集洗脱液,并以PSA萃取管进一步净化。离心后提取上机。当加标水平为0. 000 2~0. 001 0 mg/kg时的回收率为73. 0%~92. 4%,相对标准偏差为4. 1%~8. 9%,检出限为0. 02~0. 20μg/kg。该方法操作快捷,技术参数均满足GB/T 27404—2008附录F中的要求,适用于高脂食品中14种光引发剂的同时分析。
To establish a GC-MS method for determination of 14 photo-initiators in fatty food. The homogeneous samples were extracted by acetonehexane（2：8,v： v） for 15 min at room temperature. The supernatant was purified by HLB column,and the eluent was then collected,which was further purified by PSA. The purified eluent was centrifuged and determined by GC-MS. The recoveries were between 73. 0% - 92. 4% at spiked levels of 0. 000 2 - 0. 001 0 mg/kg,and the relative standard deviation of the methods were 4. 1% - 8. 9%,with the LOD ranging from0. 02 - 0. 20 μg/kg. It was in accordance with the requirement of technical parameters for analysis with fast and simple determination and high sensitivity. It was suitable for the simultaneous determination of 14 photoinitiators in fatty food.
作者
徐文泱
陈华
XU Wen-yang, CHEN Hua(Hunan Research Institute of Food Quality Supervision and Inspection, Changsha, Hunan 410017, China)
出处
《食品与机械》
CSCD
北大核心
2018年第8期54-59,共6页
Food and Machinery
基金
湖南省食品药品安全科技项目(编号:湘食药科R201701)
