Title
Microplastics Detection in Streaming Tap Water with Raman Spectroscopy.
Abstract
Microplastic particles have been found in drinking water sources worldwide and, thus, also in our food and beverages. Especially small microplastics, with sizes of 1 mm and less, cannot be identified reliably without spectroscopic means such as Fourier transform infrared spectroscopy (FTIR) or Raman spectroscopy, usually applied to the particles extracted from the samples. However, for drinking and tap water, with its comparatively low biological loads, direct observation may be possible and allows a point-of-entry monitoring for beverages and food to ensure uncontaminated drinking water is being used. In a proof of concept, we apply Raman spectroscopy to observe individual microplastic particles in tap water with added particulate and fluorescent contaminants streaming with 1 L/h through a custom-made flow cell. We evaluated several tubing materials for compatibility with microplastic suspensions containing three different polymers widely found in microplastic surveys worldwide. The experiment promises the monitoring of streaming tap water and even clear surface waters for microplastics smaller than 0.1 mm.
Year
DOI
Venue
2019
10.3390/s19081839
SENSORS
Keywords
Field
DocType
microplastics,single particle detection,tap water,Raman spectroscopy
Tap water,Analytical chemistry,Polymer,Particulates,Microplastics,Engineering,Raman spectroscopy,Contamination,Fourier transform infrared spectroscopy
Journal
Volume
Issue
ISSN
19
8.0
1424-8220
Citations 
PageRank 
References 
0
0.34
0
Authors
3
Name
Order
Citations
PageRank
Ann-Kathrin Kniggendorf100.34
Christoph Wetzel200.34
bernhard roth395.27