Meaning
Analytical profiling of polymer samples detects chemical substances that migrate into solvents under aggressive laboratory conditions. Medical device manufacturers execute extractables screening to identify potential contaminants like residual monomers, catalysts or plasticizers within a raw resin batch. This testing occurs prior to tool qualification to ensure raw materials comply with safety regulations.
Material Analysis
Gas chromatography and mass spectrometry identify the exact chemical nature of migrating substances after solvent extraction. The testing subjects the polymer to high temperatures and volatile organic solvents to force any mobile molecules out of the polymer matrix. These extreme extraction conditions do not mimic typical usage but instead reveal the worst-case migration scenario of the formulation.
Moulders rely on these raw values to select compounding additives that will not leach into food or pharmaceutical products during the lifecycle of the moulded part.
Contamination Prevention
Sourcing certified resins with low additive migration limits prevents issues during end-use product testing. A moulder who uses regrind instead of virgin resin risk introduces unknown compounds from previous processing cycles. This testing detects those hidden contaminants before a complete production run is ruined by unapproved chemical species.
Compliance Record
Regulatory bodies require certified test reports to approve medical or food-contact applications. Having a verifiable baseline document ensures that the product meets international standards without requiring repeated testing for each batch. This documentation acts as a guarantee of purity throughout the lifetime of the product design.
