INITIAL CONCENTRATION PROFILE INFLUENCE ON MIGRATION MEASUREMENTS FROM PLASTIC PACKAGING: A SIMULATION STUDY

• Abstract:

  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.
• Keywords:

  migration, diffusion, packaging, simulation, chemical contamination
• Download:

  PWC-2006-TC7-023u.pdf
• DOI:

  _unreg_wc-2006.TC7-023

Event details: