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Identification of Microplastics Using Raman Spectroscopy

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Identification of Microplastics Using Raman Spectroscopy

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  • Author: Angela Flack
Microplastics are defined as small solid particles of less than 5 mm composed of polymers. Additionally, they may also contain additives, such as dyes, and impurities from manufacturing. They are either described as primary microplastics which are plastics intentionally made small (e.g. microbeads), or secondary microplastics which are discarded plastic waste which has been broken down in marine environments and by the sun. Microplastics are found everywhere in the environment including oceans, fish, salt, air, rivers, bottled water, and tap water. They accumulate in water and are eaten by animals such a fish and shellfish. These microplastics are then subsequently found in food and water for human consumption.

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