铝塑复合食品包装中的铝向食品模拟物的迁移研究

Aluminum migration from aluminum- plastic composite packaging to food simulants

摘要: 建立了基于电感耦合等离子体质谱法（ICP-MS）,铝塑复合食品包装中的铝向食品模拟物迁移量的测定方法。采用两种食品模拟物（3%（w/v）乙酸、水）,利用迁移机使食品模拟物与铝塑食品包装材料单面接触,在温度27±2、45、70℃下进行迁移实验,采用电感耦合等离子体质谱仪对食品模拟物中的铝元素进行测定,得出迁移规律。随着迁移时间的延长,铝的最大迁移量都在增加;在实验温度区间,随着温度的升高,铝的迁移量也随之增加至迁移平衡。本方法适合用于铝塑复合食品包装中的铝向3%（w/v）乙酸溶液和蒸馏水两种食品模拟物迁移后的检测。

Abstract: The method for the migration of aluminum in food simulants by inductively coupled plasma mass spectrometry( ICP- MS) was proposed.The aluminum- plastic composite packaging materials were soaked single contacting with food simulants( 3%( w / v) acetic acid,water) at 27 ± 2,45,70 ℃ for migration.The contents of Al in food simulants were determined by ICP- MS. The results showed that the largest migration content of Al was increased with the migration time extended. At experiment temperature range,the migration of Al was increased with temperature till the migration equilibrium. This method was suitable for the detection of aluminum in the food composite packaging.