High-throughput Microplastic Monitoring In Microfluidics By Rapid Coherent Raman Scattering Spectroscopy

Lu, Minjian

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https://hdl.handle.net/2142/116986 Copy

Description

Title

High-throughput Microplastic Monitoring In Microfluidics By Rapid Coherent Raman Scattering Spectroscopy

Author(s)

Lu, Minjian

Contributor(s)

• Wei, Haoyun
• LI, Yan
• Zhang, Yujia

Issue Date

2022-06-22

Keyword(s)

Coblentz Special Session

Abstract

\begin{wrapfigure}{l}{0pt} \includegraphics[scale=1.0]{graphics.eps} \end{wrapfigure} Although small microplastics pose a huge threat to aquatic environment and biological health, current microplastic monitoring procedures are rather time-consuming and laborious. With the help of the rapid coherent anti-Stokes Raman scattering microspectroscopy as a label-free molecular identification approach, we achieved microplastic monitoring in microfluidics with a high throughput of \~{}2150 events/s. The spectral refresh rate, i.e. the theoretical highest throughput, is 35 000 events/s by the apparatus, which is the highest speed for flow device monitoring up to the present. Also, we classified PS and PMMA microbeads based on their unique spectral peaks, and the classification was further verified by principal component analysis (PCA). Other sets of results under different flow velocities are further classified and verified by the PCA model trained by the first set of data, with a consistency more than 99\%, which demonstrates the repeatability and consistency of our system in rapid monitoring.

Publisher

International Symposium on Molecular Spectroscopy

Type of Resource

text

Language

eng

Handle URL

https://hdl.handle.net/2142/116986

DOI

https://doi.org/10.15278/isms.2022.WE07

Copyright and License Information

Copyright 2022 held by the authors

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