自动顶空气相色谱法同时测定食品包装材料中氯乙烯、1,1-二氯乙烷和1,2-二氯乙烷单体  

Determination of vinyl chloride,1,1-dichloroethane and 1,2-dichloroethane monomer in food packaging materials by capillary gas chromatography with auto headspace sampling

作　　者：刘俊[1] 贾丽君[1] 田延河[1] 李新[2] 张旭龙[1] 全小盾[1] 

机构地区：[1]新疆出入境检验检疫局技术中心,乌鲁木齐830063 [2]新疆大学化学与化工学院,乌鲁木齐830046

出　　处：《中国卫生检验杂志》2011年第12期2821-2823,共3页Chinese Journal of Health Laboratory Technology

基　　金：国家质检总局科技项目(2009IK199)

摘　　要：目的:建立食品包装材料中残留氯乙烯、1,1-二氯乙烷和1,2-二氯乙烷单体含量的自动顶空毛细管气相色谱分析方法。方法:准确称取样品于顶空瓶中,加入N,N二甲基乙酰胺,加盖密封,放入自动顶空进样器,供气相色谱分析,外标法定量。采用DB-624毛细管柱和火焰离子化检测器测定。结果:在本实验条件下,氯乙烯、1,1-二氯乙烷和1,2-二氯乙烷单体线性关系良好(r分别为0.9950、0.9992和0.9977)。平均回收率为84%～102%,相对标准偏差(RSD)为0.29%～1.72%。结论:该法简便、快速、灵敏、准确,适合食品包装材料中残留氯乙烯、1,1-二氯乙烷和1,2-二氯乙烷单体的测定。Objective：To establish an analytical method for determination of vinyl chloride,1,1-dichloroethane and 1,2-dichloroethane monomer in food packaging materials by headspace capillary gas chromatography.Methods： Vinyl chloride,1,1-dichloroethane and 1,2-dichloroethane monomer were collected from a standard solution or samples using a headspace system,then analyzed by GC.External standards methods were used for quantitation.DB-624 capillary column and flame ionization detector（FID） were employed.Results： The linear correlation coefficients of the method for vinyl chloride,1,1-dichloroethane and 1,2-dichloroethane monomer were 0.9950,0.9992 and 0.9977,respectively（n=5）.The average recoveries were in the range of 84%~102% with relative standard deviations of 0.29%~1.72%.Conclusion： The method was simple and quick.It was suitable for the determination of residual vinyl chloride,1,1-dichloroethane and 1,2-dichloroethane monomer in food packaging materials.

关 键 词：食品包装材料 毛细管气相色谱法 顶空法 氯乙烯 1 1-二氯乙烷 1 2-二氯乙烷 

分 类 号：O657.71[理学—分析化学]