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Methods for sampling and detection of microplastics in water and sediment: A critical review

Prata, Joana Correia ; da Costa, João P. ; Duarte, Armando C. ; Rocha-Santos, Teresa

TrAC, Trends in analytical chemistry (Regular ed.), 2019-01, Vol.110, p.150-159 [Periódico revisado por pares]

Elsevier B.V

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  • Título:
    Methods for sampling and detection of microplastics in water and sediment: A critical review
  • Autor: Prata, Joana Correia ; da Costa, João P. ; Duarte, Armando C. ; Rocha-Santos, Teresa
  • Assuntos: Analytical procedures ; FTIR ; Microplastics ; Raman spectroscopy ; Sampling of microplastics ; Staining dyes
  • É parte de: TrAC, Trends in analytical chemistry (Regular ed.), 2019-01, Vol.110, p.150-159
  • Descrição: Microplastics are widespread contaminants, virtually present in all environmental compartments. However, knowledge on sources, fate and environmental concentration over time and space still is limited due to the laborious and varied analytical procedures currently used. In this work we critically review the methods currently used for sampling and detection of microplastics, identifying flaws in study design and suggesting promising alternatives. This work provides insights on bulk sample collection, separation, digestion, identification and quantification, and mitigation of cross-contamination. The sampling of microplastics will improve in representativeness and reproducibility through the determination of bulk sample volume, filter's pore size, density separation and digestion solutions, but also through use of novel methods, such as the enhancement of visual identification by staining dyes, and the generalized use of chemical characterization. •Methods of sampling and detection of microplastics vary between groups.•Sampling and separation of microplastics needs to be standardized.•Removal of organic matter through digestion improves identification.•Visual inspection can be improved, chemical identification is essential.•Mitigation of cross-contaminations is required to validate the results.
  • Editor: Elsevier B.V
  • Idioma: Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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