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Analysis of toluene diisocyanate of adhesives in food contact materials by GC/MS  

Oh, Chang-Hwan (Department of Oriental Medical Food and Nutrition, Semyung University)
Kim, Ji-Young (Reseach, LabFrontier Corp.)
Jo, Cheon-Ho (Department of Chemistry, Kyonggi University)
Park, Heera (Korea Food and Drug Administration)
Kwun, Ki-Sung (Korea Food and Drug Administration)
Kim, Meehye (Korea Food and Drug Administration)
Myung, Seung-Woon (Department of Chemistry, Kyonggi University)
Publication Information
Analytical Science and Technology / v.18, no.6, 2005 , pp. 511-519 More about this Journal
Abstract
A method for determination of toluene diisocyanates (TDI) in toluene diisocynate (TDI)-based polyurethane (PUR) packing material was investigated, and also the migration of TDI to food was studied. TDI was extracted using food simulants such as n-haptane and 4% aqueous acetic acid. The determinations were performed using gas chromatography/mass spectrometry (GC/MS). One of major components for polyurethane, toluene diisocyanates, were detected in ten samples among twenty six food contact materials with the concentration range of $0.51{\sim}60.88{\mu}g/ml$. However the highest extracted amount was just 0.7% of $60.88{\mu}g/ml$ if the contact surface of food packing for extracting liquid was limited to the outer layer without exposure of the cutting edge of food packing multi-layers. The result of this study and the analysis method for TDI diisocyanate will be very useful for further study about food contact material, and the monitoring result could be used for evaluating the safety of food contact material before it is to be used for food, preservation.
Keywords
toluene diisocyanates; food simulant; packing material; hazard; GC/MS;
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