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Reliable Microplastics Analysis in Food: Raman Identification Down to 1 µm
This application note highlights Raman microscopy as the reference method able to analyze microplastics in salt down to 1 µm with confidence.
This application note presents a practical workflow for the detection and characterization of microplastics down to 1 µm in table salt. After dissolution and filtration, samples are analyzed using an automated how Raman microscopy approach. The method addresses key challenges such as high particle numbers, particle overlap, and trace-level detection through optimized sample preparation, adapted sampling mass, and a robust statistical strategy. Several polymer types, including polypropylene (PP), polyethylene terephthalate (PET), polyamide (PA), polyvinyl chloride (PVC), butadiene rubber (BR), and silicone, were successfully identified.
Raman Microscope
Automated Particle Measurement, Identification and Classification using Raman Analysis
Spectral Identification Assistant within Raman Spectra Database
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