Migration studies from paper and board food packaging materials. Part 2. Survey for residues of dialkylamino benzophenone UV-cur ink photoinitiators

摘要

A survey of retail samples was conducted in two phases with 50 general paper and board food contact materials and articles analysed in 1992, and 121 samples, speci- fically of printed cartonboard, analysed in 1995. Packa- ging samples were extracted with ethanol containing 0. 4/100 triethylamine. The extracts were analysed using high performance liquid chromatography (HPLC) and the presence of 4,4'-bis(dimethylamino)benzophenone (Michler's ketone, MK) and 4,4'-bis(diethylamino)- benzophenone (DEAB) confirmed using gas chromato- graphy coupled to mass spectroscopy (GC-MS).