UPLC-MS/MS法同时测定外卖食品接触材料中7种抗氧化剂的迁移量

Simultaneous Determination of Migration Limits of 7 Kinds of Antioxidants in Takeaway Food Contact Materials by Ultra-performance Liquid Chromatography-Tandem Mass Spectrometry

采用UPLC-MS/MS法,建立同时测定外卖食品接触材料中7种抗氧化剂迁移量的定量分析方法。结果表明:7种目标化合物在0.05~1.0 mg/L及0.5~10 mg/L范围内具有较好的线性关系,相关系数R^(2)≥0.99;方法检出限为0.02~0.2mg/kg,定量限为0.05~0.5 mg/kg;方法的回收率为81.4%~116.1%,相对标准偏差为1.1%~9.8%。该方法前处理简单,灵敏度高,适用于外卖食品接触材料中抗氧化剂迁移量的定量分析。

A quantitative analysis method for simultaneous determination of migration limits of 7 kinds of antioxidants in takeaway food contact materials was established by ultra-performance liquid chromatography-tandem mass spectrometry(UPLC-MS/MS).The results showed that 7 kinds of target compounds had good linear relationship in the range of 0.05 to 1.0 mg/L and 0.5 to 10 mg/L with the correlation coefficients above 0.99.The detection limits and quantification limits were in the range of 0.02 to 0.2 mg/kg and 0.05 to 0.5 mg/kg.The recoveries were between 81.4%and 116.1%with relative standard deviations of 1.1%to 9.8%.The method was simple and sensitive,which is suitable for quantitative analysis of migration limits of antioxidants in takeaway food contact materials.