STYRENE AND ETHYLBENZENE MIGRATION FROM POLYSTYRENE INTO DAIRY-PRODUCTS BY DYNAMIC PURGE-AND-TRAP GAS-CHROMATOGRAPHY

Citation
J. Ehrethenry et al., STYRENE AND ETHYLBENZENE MIGRATION FROM POLYSTYRENE INTO DAIRY-PRODUCTS BY DYNAMIC PURGE-AND-TRAP GAS-CHROMATOGRAPHY, Journal of food science, 59(5), 1994, pp. 990
Citations number
29
Categorie Soggetti
Food Science & Tenology
Journal title
ISSN journal
00221147
Volume
59
Issue
5
Year of publication
1994
Database
ISI
SICI code
0022-1147(1994)59:5<990:SAEMFP>2.0.ZU;2-P
Abstract
Ethylbenzene and styrene were determined by an automated dynamic heads pace system with a purge-and-trap injector. Hydrocarbons were purged w ith He into a cold trap and separated by GC. The procedure was applied to dairy products without sample preparation. Preliminary He treatmen t, temperature of condenser, and of the analytical cell were important . Results of styrene migration from the package into dairy products, i ncluding yogurts, cream and chocolate desserts, were well below 50 mu g/kg.