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[Migration of Metals Contained in Laminated Films for Food Packaging].

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|January 19, 2025

Summary

This study analyzed 42 food laminate bags, detecting 17 elements like aluminum and tin. Migration tests showed antimony, tin, and aluminum can leach into food simulants, raising food safety concerns.

Keywords:

ICP-MS food packaging laminated film metal migration test

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Area of Science:

Analytical Chemistry
Materials Science

Context:

Multilayer laminated films are common food packaging.
Potential for substance migration from packaging into food is a concern.
Limited data exists on actual migration levels.

Purpose:

To determine elemental composition of food laminate bags.
To assess migration of elements into food simulants.
To identify potential sources of migrating elements.

Summary:

Analyzed 42 food laminate bags using ICP-OES and ICP-MS, detecting 17 elements.
Identified elements likely originating from impurities, catalysts, pigments, and adhesives.
Migration tests with distilled water and 4% acetic acid revealed maximum levels for Sb (0.11 ng/mL), Sn (5.5 ng/mL), and Al (74.8 ng/mL).
Sb and Sn migration suggested from non-food contact layers.

Impact:

Provides crucial data on elemental composition and migration from food packaging.
Highlights potential risks associated with antimony, tin, and aluminum migration.
Informs regulatory bodies and manufacturers on food packaging safety assessments.