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Free Seminar - Automated particle recognition software for Raman microscopes

Do you want to know about a new automated particle recognition software package for Raman microscopes and its application to microplastics determination?


If you are free this Wednesday at 10.30 CET, Mareike Schumacher (Zentrum Makromolekulare Strukturanalyse, Leibniz Institute of Polymer Research Dresden) is visiting CSIC, Madrid, and will be giving a talk on this subject at ICP (Instituto de Catálisis y Petroleoquímica) and on-line


Here are the details: Wednesday, January 11th 2022, 11:00, Salón de Actos. 10:30 h Join online here: https://www.gotomeet.me/CSIC-SpeICat Summary Microplastics (MP) are a ubiquitous pollutant in the environment and have been reported in urban, rural and isolated areas across the earth. While aquatic and soil samples are broadly characterised, the analysis of aerosol samples is still an emerging field. Monitoring the abundance of MP in air samples raises the possibility to assess their human intake. MP are analyzed using mass balanced or particle related methods. To allow the detailed characterisation of MP, we are combining both method types by using µ-Raman spectroscopy (µRaman) and pyrolysis Gas Chromatography-Mass Spectroscopy (pyr GC/MS). This combination raises the possibility to compare the results of both method types but there are some challenges in the sample transfer. The results of µRaman are compared to pyr-GC/MS by employing a mass estimation. Particle dimensions used for mass estimation are taken from automated particle recognition software GEPARD. The combination of both methods can be a significant contribution to the analysis of MP in the atmosphere and its analysis can be facilitated by software automation.

References

  1. J. Brandt, L. Bittrich, F. Fischer, E. Kanaki, A. Tagg, R. Lenz, M. Labrenz, E. Brandes, D. Fischer, K.-J. Eichhorn, High-Throughput Analyses of Microplastic Samples Using Fourier Transform Infrared and Raman Spectrometry, Appl. Spectrosc. 74 (2020) 1185–1197. https://doi.org/10.1177/0003702820932926.

  2. GEPARD (Gepard Enabled PARticle Detection) software for combining particle detection and spectroscopic measurements is available from the IPF's Gitlab-Page: https://gitlab.ipfdd.de/GEPARD/gepard

About Mareike Schumacher Master of Science in Chemistry at Technische Universität Dresden. Former Research Scientist at Kraftwerk TUBES GmbH (quality control management for fuel cell production) and Institut Fresenius (analysis of microplastics in food and beverages).

Since 2022 Research Scientist at Leibniz-Institut of Polymer Research Dresden (Microplastics in environmental samples, Project Research AirPlast) Zentrum Makromolekulare Strukturanalyse Leibniz Institute of Polymer Research Dresden, schumacher@ipfdd.de


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