Micro-Raman spectroscopy for identification of microplastics in the São Vicente estuarine
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2022
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ENCONTRO BRASILEIRO DE ESPECTROSCOPIA RAMAN, 7.
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Microplastics (MPs) are a concern regarding our environment due to the risks posed by the interactions of the large
amounts of anthropogenic MPs dumped in the environment with biological systems. MPs have been vastly found in
the environment and are transferred to the food chain with MPs being detected in foods, beverages and even in
human blood and breastmilk. Understanding the behavior and characteristics of MPs is critical to assessing potential
health risks (human and environmental) related to MPs and taking steps to prevent them from entering the
ecosystem. Micro Raman spectroscopy is a powerful tool for measuring and characterizing MPs particles, being
considered the gold standard because it allows identification of both the polymer matrix and possible pigments and
contaminants. Furthermore it offers the possibility of characterizing both the chemical structure as well as the
morphological features of the MPs. We utilized a Raman system to characterize MPs from the environment. Results
from a standard MP sample were successfully measured and identified to reference spectra and even small portions
of the sample as small as a few μm are suitable for obtaining a high quality spectrum for identification of the material
(Fig1). Samples collected from at the São Vicente estuarine are being studied and by means of comparison with the
Willey database it was possible to identify MP, additives and contaminants, thus demonstrating the power of the
technique.
Como referenciar
BERECZKI, ALLAN; PASCOAL, DIEGO R.C.; DIPOLD, JESSICA; GIMILIANI, GIOVANA T.; PARRA, DUCLERC F.; FREITAS, ANDERSON Z.; WETTER, NIKLAUS. Micro-Raman spectroscopy for identification of microplastics in the São Vicente estuarine. In: ENCONTRO BRASILEIRO DE ESPECTROSCOPIA RAMAN, 7., 5-8 de dezembro, 2022, São Pedro, SP. Resumo... Disponível em: http://repositorio.ipen.br/handle/123456789/33686. Acesso em: 19 Apr 2024.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.