Abstract:In this study, a solid phase micro-extraction coupled with gas chromatography tandem mass spectrometry (SPME-GC-MS/MS) method was established for the analysis of 9 aromatics (toluene, ethylbenzene, o/p/m-xylene, 1,2,4,5-tetramethylbenzene, naphthalene, 1-methylnaphthalene, 2-methylnaphthalene) in food contact silicone products. The contents of 9 aromatics in 31 nipples and 32 molds were determined and analysis. Suppose that 9 aromatics could completely to food, a simple distribution assessment model was established by the @RISK to calculate the estimated daily intake of 9 aromatics in the molds and nipples. Finally, through the exposure assessment combined with the existing regulations at home and abroad, the preliminary safety assessment was carried out. The results indicated that the analysis method was efficient, sensitive and reliable. The detection limit of 9 aromatics ranged from 6.30×10-3 to 0.06 ng/mL, and the average recovery rate from 98.24% to 110.23%. The average content of 9 aromatics was 6.91-129.79 ng/g in 31 nipples and 50.73-1 376.78 ng/dm2 in 32 molds, respectively. In the case of hypothetical extreme migration, the estimated daily intake of 9 aromatics was 1.06-21.63 ng/kg bw in 31 nipples and 0.47-12.63 ng/kg bw in 32 molds, which were lower than the EU limits. The results indicated that the migration of 9 aromatics may result in less safety risks.