食品包装材料中双酚A迁移量的测定  

Determination of Bisphenol A Migration in Food Packaging Materials

作　　者：孙汉文[1] 李挥[1,2] 高文惠[3] 周晓婷[3] 

机构地区：[1]河北大学化学与环境科学学院,河北省分析科学重点实验室,河北保定071002 [2]河北省食品质量监督检验研究院,河北石家庄050051 [3]河北科技大学生物科学与工程学院,河北石家庄050018

出　　处：《食品科学》2012年第2期235-239,共5页Food Science

基　　金：河北省科技支撑计划项目(10276902D);河北省科技厅重大科技攻关项目(09227134D);河北省自然科学基金项目(B2008000669)

摘　　要：建立采用高效液相色谱法对塑料食品包装材料中双酚A向食品模拟物迁移量的检测方法。使用4种食品模拟物:水、质量分数为4%乙酸溶液、体积分数30%的乙醇溶液和脂肪类模拟物(正己烷、异辛烷和橄榄油)。结果表明,双酚A在与食品塑料包装接触过程中,无论在何种情况下都会向食品模拟物中迁移,尤其向醇类模拟物中迁移最严重;在温度超过60℃时,双酚A向食品模拟物中的迁移率骤增;在微波加热条件,高火700W功率时双酚A向食品模拟物中的迁移速率最快。该方法检测限为0.3ng/mL,线性范围为0.5～100ng/mL,线性相关系数为0.9997,回收率在92.0%～102.4%之间,相对标准偏差≤2.84%(n=5)。A high performance liquid chromatography method was developed for determining the migration of bisphenol A from plastic food packaging materials into food simulants such as water,4% acetic acid solution（weight fraction）,30% ethanol solution（volume fraction） and fat simulants（hexane,isooctane and olive oil）.The results showed that bisphenol A could migrate to foods from packaging materials during the contact with foods,especially in alcohol simulants.The migration rate of bisphenol A from packaging materials to foods revealed a dramatic increase at the temperature of over 60 ℃.Under the condition of microwave heating,microwave power at 700 W could result in the fastest migration of bisphenol A.The detection limit of the method was 0.3 ng/mL with a linear range of 0.5-100 ng/mL and a linear correlation coefficient of 0.9997.The average recovery rate of the method was 92.0%-102.4% with a relative standard deviation（RSD） of less than 2.84%.

关 键 词：塑料食品包装材料 模拟物 双酚A 迁移 高效液相色谱法 

分 类 号：TS207.3[轻工技术与工程—食品科学]