Migration of perfluorinated compounds from paperbag to Tenax® and lyophilised milk at different temperatures

摘要

Migration tests of perfluoroalkyl substances (PFASs) from a grease-proof paperbag used for packaging of pet food have been carried out. No migration of perfluorocaboxylic acids (PFCAs), from PFBA to PFTeDA, to the simulant Tenax (R) was found after 10 days at 40 degrees C. However, the increase of temperature in the range 80-160 degrees C gave rise to the migration of the PFCAs. Finally, the migration to real foods such as lyophilised whole and low-fat milk samples at 80 and 120 degrees C was studied. The results indicate that the migration percentages of the PFCASs into food samples are much higher than those obtained into Tenax (R).