食品接触用硅橡胶中8种金属元素的迁移分析  

Analysis of 8 migratory metal elements in food contact silicone rubber

作　　者：孙衎 万峰 禄春强[1] 罗婵[1] 孙多志[1] 李军[1] 左莹[1] SUN Kan;WAN Feng;LU Chun-Qiang;LUO Chan;SUN Duo-Zhi;LI Jun;ZUO Ying(Institute of Quality Inspection of Light Industry & Chemical Products,Shanghai Institute of Quality Inspection and Technical Reseach,Shanghai 201114,China)

机构地区：[1]上海市质量监督检验技术研究院轻工与化工产品质量检验所,上海201114

出　　处：《食品安全质量检测学报》2018年第24期6420-6424,共5页Journal of Food Safety and Quality

基　　金：上海市科学技术委员会研发公共服务平台建设项目(14DZ2293000);上海市质量技术监督局科研项目(2017-24)~~

摘　　要：目的研究食品接触用硅橡胶制品中8种金属元素(钡、锂、铜、铁、钴、锰、锌和铝)的迁移量。方法以3%乙酸(m:V)作为食品模拟物,利用电感耦合等离子体质谱法测定食品接触用硅橡胶中8种金属元素的迁移量。结果各金属元素的线性范围在1～100μg/L,方法检出限在0.005～0.6μg/kg之间,加标回收率在88.4%～108.0%,重复性测定相对偏差(n=6)在1.2%～3.6%之间。对20批次食品接触用硅橡胶制品中8种金属元素的迁移量进行测试,发现7种金属元素(钡、锂、铜、铁、锰、锌和铝)均有检出。结论该方法可以准确测定食品接触用硅橡胶中8种金属元素(钡、锂、铜、铁、钴、锰、锌和铝)的迁移量,且检测结果显示随着迁移次数的增加迁移量逐渐降低。Objective To investigate the migrations of 8 metal elements (Ba,Li,Cu,Fe,Co,Mn,Zn,and Al)in food contact silicone rubber product.Methods Acetic acid (3%,m:V)was used as food simulate,and inductively coupled plasma mass spectrometry (ICP-MS)was used to determine the 8 migratory metal elements in food contact silicone rubber product.Results Linear relationships of 8 metal elements were ranged from 1 to 100μg/L.The limits of quantitation (LOQs)of 8 metal elements were ranged from 0.005 to 0.6μg/kg,the recoveries were ranged from 88.4% to 108.0%,and the relative standard deviations (RSDs)were ranged from 1.2% to 3.6%(n=6).The migrations of 8 metal elements (Ba,Li,Cu,Fe,Co,Mn,Zn,and Al)in 20 batches of food contact silicone rubber products were tested,and the result indicated that 7 metal elements (Ba,Li,Cu,Fe,Mn,Zn,and Al)were detected as positive.Conclusion The method can accurately determine the migrations of 8 metal elements (Ba,Li,Cu,Fe,Co, Mn,Zn,and Al)in food contact silicone rubber product,and the migrations decrease gradually as the increasing of the number of migration.

关 键 词：电感耦合等离子体质谱法 食品接触用 硅橡胶制品 迁移金属元素 

分 类 号：TS206.4[轻工技术与工程—食品科学]