Rodríguez Bernaldo de Quirós, Ana IsabelViqueira Varela, NoeliaSendón García, Raquel2020-04-242020-04-242015De Quirós, A.R.-B.; Varela, N.V.; Sendón, R. Study of the Migration of Three Model Substances from Low Density Polyethylene into Food Simulant and Fruit Juices. Beverages 2015, 1, 159-168http://hdl.handle.net/10347/21707In the present work, the migration of three chemicals, benzophenone, 1,4-diphenylbutadiene and Uvitex® OB from low-density polyethylene samples into the food simulant, 50% ethanol (v/v), was studied. The key parameters of the diffusion process, the partition and diffusion coefficients, were calculated by using a mathematical model based on Fick’s Second Law. As expected, the diffusion coefficients increased with temperature and the values obtained ranged between 3.87 × 10−11 and 1.00 × 10−8 cm2/s. Furthermore, the migration in different fruit juices was also evaluated and the results indicated that benzophenone migrated to a greater extent in comparison with the other two migrants in all beverages analyzed. To quantify the migrants, a high-performance liquid chromatographic method with a diode array detector (HPLC-DAD) was used. The separation was performed on an Ace 3 C18-HL column (30 × 3 mm, 3 μm particle size) and using a gradient elution system consisting of Milli-Q water and acetonitrile. The total analysis time did not exceed 8 mineng© 2015 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/4.0/)http://creativecommons.org/licenses/by/4.0/MigrationDiffusion coefficientsPartition coefficientsFood simulantFruit juicesjournal article10.3390/beverages10301592306-5710open access