采用气相色谱-质谱(GC-MS)法测定了食品包装用 PVC 中 DBP,DEHP 和 DEHA 3 种增塑剂的残留,然后结合凝胶渗透色谱(GPC)技术研究了高温下 3 种增塑剂在脂类食品(模拟液)中的迁℃规律。 结果表明,PVC食品包装中均不同程度地有 3 种增塑剂残留,残留的增塑剂在高温(80,100 ℃ )条件下,极易快速迁℃至脂类食品(模拟液)中,甚至超过欧盟的限量标准(1. 5 mg / kg),且迁℃量随时间延长而增加。

3 kinds of plasticizer DBP, DEHP, and DEHA in food contact PVC packaging were determined using GCMS method. The migration of the plasticizers into oil-type foodstuff simulants at high temperature was studied by combining GC-MS and gel permeation chromatography (GPC). The results indicated that 3 kinds of plasticizer exist in the food contact PVC with different contents; the existing plasticizers can easily migrate into oil-type food simulants quickly under high temperature (80 ℃ , 100 ℃ ), and the amount of migration exceeds the required limited quantity of 1. 5 mg / kg in EU; moreover, the migration quantity increases with time extending.