On August 8, 2023, the line scanning Raman spectroscopy technology jointly developed by Li Bei's research team of Changchun Institute of Optics, Precision Mechanics and Physics, Chinese Academy of Sciences, and Wolfgang Langbein's team of professors from Cardiff University (winner of the PIFI Scholarship of Chinese Academy of Sciences) published a paper entitled "Rapid identification of micro and nano plastics by line scan Raman micro spectroscopy" on the journal Talanta. This study applies line scanning Raman spectroscopy technology to the field of microplastic detection, achieving size and composition recognition of microplastic particles and large-scale imaging.

Abstract

Microplastic pollution has become an environmental problem that cannot be ignored in our society. Raman spectroscopy technology has been widely used in the field of microplastics detection due to its non-contact, non-destructive chemical specificity. Traditional point confocal Raman micro-spectroscopy technology uses single-point detection, resulting in long measurement times to scan the large areas of interest of typical samples. In this paper, we present a line scan confocal Raman micro-spectroscopy tool for fast detection and identification of microplastic particles. We show size and composition identification of particles and imaging over large areas. Compared with point confocal Raman imaging, the line scan confocal Raman technology increases the imaging speed by 1–2 orders of magnitude.

The paper links：

https://doi.org/10.1016/j.talanta.2023.125067