不同产地PVC保鲜膜中DOP的含量分析

Determination and Comparison of the Dioctyl Phthalate(DOP) Pollution in PVC Fresh Keeping Film from Different Producing Areas

采用HPLC测定结合溶剂萃取方法分析比较不同产地PVC保鲜膜中邻苯二甲酸二辛酯(DOP)的含量,结果表明,DOP标样回收率在90.2%～91.8%,在HPLC测定条件下DOP出峰达到基线分离。不同产地的PVC保鲜膜中DOP含量存在明显的差异,其中中国产PVC保鲜膜中DOP含量最高(3.074 2μg/g),韩国产PVC保鲜膜中DOP含量最低(1.000 0μg/g),但均远远低于欧盟规定的TDI值。

The contents of Dioctyl phthalate（DOP） in PVC fresh keeping film from different producing areas were determined by HPLC with solution-extraction.The result showed that the recovery rate of DOP was 90.2%~91.8%,under the detection condition of HPLC,DOP peak achieved baseline separation.There were great differences among the contents of DOP in PVC fresh keeping film from different producing areas.The content of DOP in fresh keeping film from China was highest（3.074 2 μg/g）.However,the content of DOP in fresh keeping film from South Korea was lowest（1.000 0 μg/g）,far lower than TDI value seted by EU.