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Article ? AI-assigned paper type based on the abstract. Classification may not be perfect — flag errors using the feedback button. Tier 2 ? Original research — experimental, observational, or case-control study. Direct primary evidence. Detection Methods Sign in to save

Detection and identification of microplastics directly in water by hyperspectral imaging

EPJ Web of Conferences 2023 1 citation ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count.
Ana Gebejes, Boniphace Kaynathare, Blaž Hrovat, Dmitri Semenov, Tommi Itkonen, Markku Keinänen, Arto Koistinen, Kai-Erik Peiponen∥, M. Roussey

Summary

Researchers used hyperspectral imaging to identify different types of microplastics mixed together in water, demonstrating that the technique can distinguish polymer types based on their spectral signatures. This non-destructive, real-time method could improve the speed and accuracy of microplastic monitoring in water samples.

We use hyperspectral imaging to identify the plastic types constituting mixtures of microplastics directly in water. For the current study we used known microplastics made by milling original pristine plastic sheets and mixed them in water. Using database information and spectral information measured on those pristine plastic we created a decision table enabling the identification. This technique is used under these conditions paving a way towards on-field and in-line measurements.

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