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Microplastic Characterization by Infrared Spectroscopy

  • Jun-Li XuEmail author
  • Martin Hassellöv
  • Keping Yu
  • Aoife A. Gowen
Living reference work entry

Abstract

A realistic risk assessment of microplastic pollution must stand on representative data on the abundance, size distribution, and chemical composition of polymers. Infrared spectroscopy is an indispensable tool for the analysis of microplastics (<5 mm). Spectral imaging, which provides simultaneous measurement of spatial (e.g., particle morphology) and spectroscopic information, is a promising approach toward automated microplastic analysis. This chapter aims at providing guidelines to assist with the analysis of spectral imaging data and summarizing the limitations and analytical challenges from a technical point of view. Topics, like automated particle selection for faster infrared mapping, spectral pre-processing to enhance signal quality, multivariate exploratory analysis, comprehensive reference spectral libraries, spectral matching approaches, and model-based classification, will be exposed and some possible strategies and solutions given and discussed. We will demonstrate how to identify microplastic species by using Fourier transform infrared spectroscopy data in a stepwise manner, with detailed MATLAB command line scripts freely available to be downloaded. The reader is guided through every step and oriented in order to adapt those strategies to the user’s individual case.

Keywords

Microplastics Characterization Infrared spectroscopy Matlab 

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Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  • Jun-Li Xu
    • 1
    Email author
  • Martin Hassellöv
    • 2
  • Keping Yu
    • 3
  • Aoife A. Gowen
    • 1
  1. 1.School of Biosystems and Food EngineeringUniversity College DublinDublinIreland
  2. 2.Department of Marine SciencesUniversity of GothenburgGöteborgSweden
  3. 3.Global Information and Telecommunication InstituteWaseda UniversityShinjukuJapan

Section editors and affiliations

  • João Pinto da Costa
    • 1
  • Armando da Costa Duarte
    • 2
  1. 1.Department of Chemistry and Centre for Environmental and Marine StudiesUniversity of AveiroAveiroPortugal
  2. 2.Department of Chemistry & CESAMUniversity of AveiroAveiroPortugal

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