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Feasibility study for the development of certified reference materials for specific migration testing. Part 1:

N H Stoffers1, A Störmer, E L Bradley

  • 1Fraunhofer Institute for Process Engineering and Packaging, Giggenhauserstrasse 35, D-85354 Freising, Germany. stoffers@ivv.fraunhofer.de

Food Additives and Contaminants
|April 1, 2005
PubMed
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This project developed the know-how for producing certified reference materials (CRMs) for specific migration testing. Six candidate materials, including polyethylene and polypropylene, demonstrated suitability for future CRM production.

Area of Science:

  • Materials Science
  • Analytical Chemistry
  • Food Safety

Background:

  • Specific migration testing is crucial for food contact materials safety.
  • Standardized methods and reference materials are needed for accurate migration analysis.
  • Existing reference materials for specific migration are limited.

Purpose of the Study:

  • To develop the expertise for producing certified reference materials (CRMs) for specific migration testing.
  • To identify and characterize suitable polymer-CRM candidates for migration analysis.
  • To validate methods for determining CRM certification parameters.

Main Methods:

  • Production of 16 candidate CRMs using common polymers and additives.
  • Testing of migrant stability and homogeneity within polymer matrices.

Related Experiment Videos

  • Development and validation of analytical methods for certification parameters (initial concentration, specific migration).
  • Trial certification exercise involving four partner laboratories.

    • Main Results:

    • Six candidate CRMs were selected based on suitability: LDPE//Irganox 1076/Irgafos 168, LDPE//1,4-diphenyl-1,3-butadiene (DPBD), HDPE//Chimassorb 81/Uvitex OB, PP homo//Irganox 1076/Irgafos 168, HIPS, 1% mineral oil//styrene, and PA 6//caprolactam.
    • Feasibility of CRM production was demonstrated for these six materials.
    • The trial certification exercise confirmed the suitability of the selected materials.

    Conclusions:

    • The project successfully developed the know-how for producing CRMs for specific migration testing.
    • Six candidate materials exhibit properties suitable for future certified reference material production.
    • This work contributes to improving the accuracy and reliability of migration testing in food contact materials.