Optimization and validation of GC-MS method for NIAS determination in food contact materials

NIAS are compounds present in materials that come into contact with food and which, however, have not been added for a technical reason during the manufacturing process. Monitoring and controlling consumer exposure to these substances is, therefore, essential to ensure the safety of food products. The migration of aniline, acetyltributylcitrate, bis(2-ethylhexyl)adipate, 2,6-tertbutylhydroxytoluene (BHT) and 1,4-butanediol from a polyurethane manufact, used as a gasket in contact with dry food matrices, into the food simulant Tenax® and into six different food matrices (rice, flour, powdered milk, cocoa powder, sugar, corn starch) is studied. The aim of this study is the optimization of a complete analytical method that allows the identification and quantification of the specific migration of the analytes, which could occur following contact of a polyurethane product with dry foods.