Otro
MIGRATION MEASUREMENTS FROM PLASTIC PACKAGING: A SIMULATION STUDY ON INFLUENCE OF INITIAL CONCENTRATION PROFILE
Registro en:
Metrology and Measurement Systems. Warsaw: Polish Acad Sciences Committee Metrology & Res Equipment, v. 14, n. 1, p. 117-123, 2007.
0860-8229
WOS:000208762400009
Autor
Manzoli, J. E.
Rosa, F. M. L.
Silva Felix, J.
Monteiro, Magali
Resumen
Migration of components from plastic packaging into foodstuffs or into medicines is a very important issue, concerning public health. Using experimental techniques, like gas chromatography-mass spectrometry, these essays measure total migration and specific migration of components from plastic packaging. This work presents an explanation and applications of a numerical technique tool for this measurement, allowing the comprehension of the diffusion process and the estimate of component migration in difficult or impractical measurements. As an application example, the non-uniform influence of initial concentration profile on the migration is presented, demonstrating the necessity of this profile determination for high quality considerations on involved metrology. Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)