GC-MS法测定食品包装用塑料垫圈及与其接触的食品中邻苯二甲酸酯类物质含量

Determination of phthalate esters in plastic gasket used in food package and the food inside by GC-MS

采用超声波萃取-气质联用法测定食品包装用塑料垫圈中5种邻苯二甲酸酯（PAEs）的含量， PAEs添加回收率在83.9%~107.8%之间，标准偏差在1.5%~6.1%之间；此外，对其中包装容器内的食品也进行了检测。结果表明：GC-MS法可以对塑料垫圈中的邻苯二甲酸酯进行定性定量分析，样品垫圈均被检出含有PAEs增塑剂成分，且由于溶出迁移，对所接触的食品造成了不同程度的污染。

Phthalate esters in plastic gasket used in food package was determinate by ultrasonic solvent extraction and gas chromatography-mass spectrometry （GC-MS）. The recoveries of phthalate esters （PAEs） were from 83.9% to 107.8%, and RSD were from 1.5%to 6.1%. Results showed that PAEs in Plastic Gasket could be identified and quan-tified by GC-MS. PAEs Plasticizer were detected in the plastic gaskets, and the foods inside were also contaminated by PAEs because of the migration.