Research on the migration behavior of adipates contained in PVC packaging films in water

The migration behaviours of five kinds of adipate plasticizers,i.e.,diethyl adipate,diisobutyl adipate,dibutyl adipate,di(2-butoxyethyl) adipate and di(ethylhexyl) adipate,contained in PVC packaging films in water were studied by headspace solid microextraction and gas chromatograph-mass spectromer single ion monitoring technology.The conditions of solid microextraction and chromatography were optimized,and the immersing conditions of PVC packaging film in water were investigated.This method showed that the detection limit was 0.022~(0.912) μg/L,recovery was 86.16%~104.33%,relative standard deviation was 7.75%~8.44%.