Development of a machine learning-based method for the analysis of microplastics in environmental samples using µ-Raman spectroscopy

Abstract This research project investigates the potential of machine learning for the analysis of microplastic Raman spectra in environmental samples. Based on a data set of > 64,000 Raman spectra (10.7% polymer spectra) from 47 environmental or waste water samples, two methods of deep learning (...

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Main Authors: Felix Weber, Andreas Zinnen, Jutta Kerpen
Format: Article
Language:English
Published: SpringerOpen 2023-04-01
Series:Microplastics and Nanoplastics
Subjects:
Online Access:https://doi.org/10.1186/s43591-023-00057-3
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author Felix Weber
Andreas Zinnen
Jutta Kerpen
author_facet Felix Weber
Andreas Zinnen
Jutta Kerpen
author_sort Felix Weber
collection DOAJ
description Abstract This research project investigates the potential of machine learning for the analysis of microplastic Raman spectra in environmental samples. Based on a data set of > 64,000 Raman spectra (10.7% polymer spectra) from 47 environmental or waste water samples, two methods of deep learning (one single model and one model per class) with the Rectified Linear Unit function (ReLU) (hidden layer) as the activation function and the sigmoid function as the output layer were evaluated and compared to human-only annotation. Based on the one-model-per-class algorithm, an approach for human–machine teaming was developed. This method makes it possible to analyze microplastic (polyethylene, polypropylene, polystyrene, polyvinyl chloride, and polyethylene terephthalate) spectra with high recall (≥ 99.4%) and precision (≥ 97.1%). Compared to human-only spectra annotation, the human–machine teaming reduces the researchers’ time required per sample from several hours to less than one hour.
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spelling doaj.art-d177d3dd4ddf4270b530eebc9d60693c2023-04-30T11:06:32ZengSpringerOpenMicroplastics and Nanoplastics2662-49662023-04-013111410.1186/s43591-023-00057-3Development of a machine learning-based method for the analysis of microplastics in environmental samples using µ-Raman spectroscopyFelix Weber0Andreas Zinnen1Jutta Kerpen2Institute for Environmental and Process Engineering, RheinMain University of Applied SciencesInstitute for Environmental and Process Engineering, RheinMain University of Applied SciencesInstitute for Environmental and Process Engineering, RheinMain University of Applied SciencesAbstract This research project investigates the potential of machine learning for the analysis of microplastic Raman spectra in environmental samples. Based on a data set of > 64,000 Raman spectra (10.7% polymer spectra) from 47 environmental or waste water samples, two methods of deep learning (one single model and one model per class) with the Rectified Linear Unit function (ReLU) (hidden layer) as the activation function and the sigmoid function as the output layer were evaluated and compared to human-only annotation. Based on the one-model-per-class algorithm, an approach for human–machine teaming was developed. This method makes it possible to analyze microplastic (polyethylene, polypropylene, polystyrene, polyvinyl chloride, and polyethylene terephthalate) spectra with high recall (≥ 99.4%) and precision (≥ 97.1%). Compared to human-only spectra annotation, the human–machine teaming reduces the researchers’ time required per sample from several hours to less than one hour.https://doi.org/10.1186/s43591-023-00057-3Environmental samplesMachine learningMicroplasticsµ-Raman spectroscopyWaste water
spellingShingle Felix Weber
Andreas Zinnen
Jutta Kerpen
Development of a machine learning-based method for the analysis of microplastics in environmental samples using µ-Raman spectroscopy
Microplastics and Nanoplastics
Environmental samples
Machine learning
Microplastics
µ-Raman spectroscopy
Waste water
title Development of a machine learning-based method for the analysis of microplastics in environmental samples using µ-Raman spectroscopy
title_full Development of a machine learning-based method for the analysis of microplastics in environmental samples using µ-Raman spectroscopy
title_fullStr Development of a machine learning-based method for the analysis of microplastics in environmental samples using µ-Raman spectroscopy
title_full_unstemmed Development of a machine learning-based method for the analysis of microplastics in environmental samples using µ-Raman spectroscopy
title_short Development of a machine learning-based method for the analysis of microplastics in environmental samples using µ-Raman spectroscopy
title_sort development of a machine learning based method for the analysis of microplastics in environmental samples using µ raman spectroscopy
topic Environmental samples
Machine learning
Microplastics
µ-Raman spectroscopy
Waste water
url https://doi.org/10.1186/s43591-023-00057-3
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AT andreaszinnen developmentofamachinelearningbasedmethodfortheanalysisofmicroplasticsinenvironmentalsamplesusingμramanspectroscopy
AT juttakerpen developmentofamachinelearningbasedmethodfortheanalysisofmicroplasticsinenvironmentalsamplesusingμramanspectroscopy