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Języki publikacji
Abstrakty
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.
Słowa kluczowe
Czasopismo
Rocznik
Tom
Strony
117--124
Opis fizyczny
Bibliogr. 7 poz., rys., wykr.
Twórcy
autor
autor
autor
autor
- Centro de Tecnologia das Radiaçoes, Instituto de Pesquisas Energéticas e Nucleares, Sao Paulo, Brazil, jmanzoli@ipen.br
Bibliografia
- 1. Katan L. L.: Migration from food contact material. Blackie Academic & Professional, London, 1996.
- 2. Hamdani M., Feigenbaum A., Vergnaud J. M.: Prediction of Worst Case Migration from Packaging to Food Using Mathematical Models, Food Additives and Contaminants, vol. 14, no. 5, pp. 499-506, 1997.
- 3. Franz R., Huber M., Piringer O.: Presentation and Experimental Verification of a Physico-mathematical Model Describing the Migration Across Functional Barrier Layers into Foodstuffs, Food Additives and Contaminants, vol. 14, no. 6-7, pp. 627-640, 1997.
- 4. Laoubi S., Vergnaud J. M.: Modelling Transport between a Monolayer and a Bi-layer Polymeric Package and Food, Food Additives and Contaminants, vol. 14, no. 6-7, pp. 641-647, 1997.
- 5. Rosa F. M. L., Monteiro M., Manzoli J. E.: Modelo Matemático e Simulação da Migração/Difusão de Componentes de Embalagens Plásticas para Alimentos ou Medicamentos Submetidas ou não à Radiação, 17º CBECIMAT - Congresso Brasileiro de Ciência e Engenharia de Materiais, CDROM, Foz do Iguaçu, PR, Brazil, 2006.
- 6. Von Rosenberg D. U.: Methods for the numerical solution of partial differential equations - Modern Analytic and Computational Methods in Science and Mathematics, Elsevier, New York, 1975.
- 7. Manzoli J. E., Monteiro M.: Mathematical Model for the Migration of Thinuvin P from PET Bottles into n-Heptane, Macro2006-World Polymer Congress, Rio de Janeiro 16-21 July, 2006.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BSW1-0028-0009