超高效液相色谱-串联质谱法分析60Coγ对包装材料BOPA/CPP中抗氧化剂的影响

摘要

T his article researched degradated bahaviour of 3 antioxitants in BOPA/CPP Packaging Materials by UPLC-MS/MS. The results showed that the contents of Irganox 1076,Irgafos168,Irganox 1010 gradually reduced ,with different irra⁃diation intensities increasing;What’s more,radiolysis products of Irganox 168 might be 2,4-Di-tert–butyl phenol;Ben⁃zene,3-bis(1,1-dimethyl-ethyl)and radiolysis products of Irganox1076、Irganox1010 might be Phenol,2,6-bis(1,1-di⁃methylethyl)-4-ethyl;2,6-D i-tert-butylphenol 2,6-Di-tert-butyl-p-benzoquinone.%利用超高效液相色谱质谱联用仪研究了包装材料BOPA/CPP中的抗氧化剂的辐解行为；结果表明BOPA/CPP中的抗氧化剂Irganox 1076，Irgafos168，Irganox 1010随辐照剂量的增大含量减小；其中抗氧化剂Irganox 168可能降解为2，4-二叔丁基苯酚和1，3-二叔丁基苯；抗氧化剂Irganox1076、Irganox1010降解为4-乙基，2，6-二叔丁基苯酚和2，6-二叔丁基对苯醌。