气相色谱法测定食品接触材料中12种单体的迁移量  

Determination of Migration of 12 Monomers in Plastic Food Contact Materials by Gas Chromatography

作　　者：李英[1] 李成发[1] 孙小颖[1] 陈旭辉[1] 陈枝楠 苏丹[1] 吴绍精 

机构地区：[1]深圳出入境检验检疫局,深圳518067 [2]深圳检验检疫科学研究院,深圳518067

出　　处：《包装工程》2015年第11期36-41,50,共7页Packaging Engineering

基　　金："十二五"科技支撑计划(2011BAK10B05-03)

摘　　要：目的建立同时测定食品接触材料中12种丙烯酸酯和甲基丙烯酸酯类单体迁移量的分析方法。方法采用水、乙酸（质量分数为3%）、乙醇（体积分数为10%）和橄榄油浸泡食品接触材料,将得到的水、乙酸、乙醇等水性模拟物和橄榄油模拟物分别经过80,90℃顶空加热20 min后,通过DB-624石英毛细管柱（30 m×0.32 mm×1.8μm）分离,顶空进样分析,氢火焰离子化检测器检测,保留时间定性,峰面积定量。结果 12种单体在0.1~50 mg/L（水性模拟物）及0.5~50 mg/kg（橄榄油模拟物）的浓度范围内呈良好线性,相关系数R大于0.999。加标回收率为89.3%~109.6%,相对标准偏差为1.13%~7.55%。结论该方法前处理简便,分离度好,分析灵敏度高,满足食品接触材料中12种丙烯酸酯和甲基丙烯酸酯类单体迁移量的分析要求。This experiment established an effective analytical method for the simultaneous determination of the migration amount of 12 ester monomers including acrylic esters and metacrylic acid esters in food contact materials by gas chromatography（GC）. Using water, 3% acetic acid, 10% ethanol and olive oil soaked food contact materials, the obtained aqueous food simulants（water, 3% acetic acid, 10% ethanol） and olive oil simulant were treated at 80℃and 90℃respectively for 20 min, then separated on a DB-624 column（30 m×0.32 mm×1.8 μm） for headspace injection analysis with hydrogen flame ionization detector for qualitation by time retention and quantitation by peak area. The results showed a good linear correlation in the range of 0.05~10 mg/L（aqueous food simulants） and 0.1~50 mg/kg（olive oil simulant） with correlation coefficients above 0.999. The recovery of the ester compounds spiked in the sample and the relative standard deviation were 89.3% ~109.6% and 1.13% ~7.55% respectively. The method was simple with good separation and high analytical sensitivity, and met the analysis requirements of migration of the 12 acrylate monomers in food contact materials.

关 键 词：有毒有害单体 迁移量 食品接触材料 顶空气相色谱法 

分 类 号：TS207[轻工技术与工程—食品科学]