Hydrogenated terphenyl contaminants in recycled paper

Cardboard packages, made from recycled material containing carbonless copy paper (CLCP), may produce food contamination by migration of some water-insoluble chemicals used as solvents in CLOP. The identification and quantification of partially hydrogenated terphenyls (HTP) in matrices as food, food packages and CLCP are reported. Results are discussed in relation to the simultaneous presence in many samples of diisopropylnaphthalene mixture (DIPN) and HTP.