气相色谱内标法测定食品接触制品水基模拟物中环氧氯丙烷的迁移量  

Determination of Epichlorohydrin Migration in Aqueous Food Contact Articles Simulants by Internal Standard Gas Chromatography

作　　者：王海波[1] 朱晓艳[1] 吴倩[1] 金米聪[2] 卢波[1] 

机构地区：[1]宁波出入境检验检疫局,浙江宁波315012 [2]宁波市疾病预防控制中心浙江省微量有毒化学物健康风险评估技术研究重点实验室宁波市毒物研究与控制重点实验室,浙江宁波315010

出　　处：《化学试剂》2017年第7期737-740,共4页Chemical Reagents

基　　金：浙江省微量有毒化学物健康风险评估技术研究重点实验室开放基金项目(2014005);国家质检总局课题项目(2011IK036)

摘　　要：采用液液萃取法测定食品接触制品水基模拟物中环氧氯丙烷的迁移量,过程简单高效。选择与待测物性状相近的环氧己烷作为内标物,采用内标法可以消除一些操作过程、仪器等因素的影响,使检测结果更加准确。比较外标法和内标法的回收率、精密度,结果显示采用外标法回收率为80.4%~92.3%,内标法回收率为89.5%~101.1%,同时内标法精密度更高。采用气相色谱FID检测器,内标法检出限为0.002 mg/kg,达到欧盟对食品接触制品模拟物中环氧氯丙烷迁移量的要求。For determination of epichlorohydrin migration in aqueous simulants of food contact articles,the liquid-liquid extraction method is simple and effective.Selecting epoxyhexane as the internal standard substance for its similar traits with epichlorohydrin,internal standard method can eliminate some operating procedural and instrumental impacts and make the results more accurate.The recovery rate of internal standard method is 89.5%-101.1%,while that of external standard method recovery rate is 80.4%-92.3%.Meanwhile,the precision of internal standard method is also superior to that of external standard method.The internal standard method detection limit using GC-FID is 0.002 mg/kg which meets EU requirements of epichlorohydrin migration in food contact articles simulants.

关 键 词：食品接触制品 环氧氯丙烷 内标法 迁移量 

分 类 号：O657.7[理学—分析化学]