K. Van Den Houwe, A. Van Heyst, C. Evrard, J. Van Loco, F. Bolle, F. Lynen and E. Van Hoeck
In a Belgian market survey, at least one photoinitiator was found in 89% of dry food samples using a sensitive and reliable ultra-performance liquid chromatography in combination with tandem mass spectrometry method. Benzophenone, 2,2-dimethoxy-2-phenyl acetophenone and ethyl-4-dimethylaminobenzoate were the most frequent detected photoinitiators, showing the need for frequent screening of dry foodstuffs, especially near the expiration date because migration is a diffusion-controlled process.