建立了气相色谱-三重串联四级杆质谱(GC-MS/MS)测定聚醚砜(PES)水杯中4,4’-二氯二苯砜迁移量的方法.以水为食品模拟物按一定条件浸泡样品,浸泡液经二氯甲烷液液萃取后进样分析.结果表明,4,4’-二氯二苯砜的平均加标回收率为89.2%—96.8%,相对标准偏差(n=6)为2.1%—3.8%,方法检出限为0.4μg·L-1.该方法简便、快速、灵敏度高,可用于聚醚砜水杯中4,4’-二氯二苯砜迁移量的测定. A method of gas chromatography-triple quadrupole mass spectrometry (GC-MS / MS) was developed for the determination of 4,4’-dichlorodiphenylsulfone (MES) in polyethersulfone (PES) The samples were soaked in liquid and extracted by liquid-liquid extraction with dichloromethane.The results showed that the average recoveries of 4,4’-dichlorodiphenylsulfone were 89.2% -96.8%, the relative standard deviations (n ​​= 6) was 2.1% -3.8% .The detection limit of the method was 0.4 μg · L-1. The method was simple, rapid and sensitive and could be used for the migration of 4,4’-dichlorodiphenyl sulfone Determination.