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The feasibility of CO₂‐laser‐induced breakdown spectroscopy for fast lead determination in glass cullet

Title data

Lehmann, Sebastian ; Fischer, Maike ; Rosin, Andreas ; Gerdes, Thorsten ; Krenkel, Walter:
The feasibility of CO₂‐laser‐induced breakdown spectroscopy for fast lead determination in glass cullet.
In: International Journal of Applied Glass Science. Vol. 11 (10 December 2020) Issue 2 . - pp. 369-379.
ISSN 2041-1294
DOI: https://doi.org/10.1111/ijag.14653

Official URL: Volltext

Project information

Project title:
Project's official titleProject's id
Glas-Technologie-Allianz Oberfranken-Ostbayern (GlasTAOO)AZ220-3066-03-16

Project financing: EFRE

Abstract in another language

With an overall collection and recycling rate of 74%, the material cycle for glass packaging is well established in the European Union. However, knowledge of the composition of the recycled glass cullet is necessary to avoid creeping accumulation of undesirable contaminants into the material cycle. Due to their toxic properties, this applies in particular for heavy metals, for example, lead. The state‐of‐the‐art technology for detection of lead in recycling glass sorting is X‐ray fluorescence (XRF). Due to lower regulatory demands, as well as increasingly economical hardware, laser‐based detection techniques, like Laser‐Induced Breakdown Spectroscopy (LIBS) may provide an alternate approach in industrial glass sorting to reach comparable detection limits and rates. In our work, CO2‐LIBS was investigated as an alternative tool for the determination of lead in glass cullet. Instead of usually utilized spectrometers, a combination of spectral filters and photodiode was employed to facilitate a fast detection rate. Glass samples with different lead content were investigated in two spectral ranges with respect to detection limits, detection speed, and accuracy. The results are compared to a commercial XRF‐sorting machine for glass cullet. It was found that comparable speeds and accuracies for lead detection in glasses can be reached.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: LIBS; measurement; properties; quality control; raw materials;
Institutions of the University: Faculties > Faculty of Engineering Science > Chair Ceramic Materials > Chair Ceramic Materials - Univ.-Prof. Dr.-Ing. Walter Krenkel
Faculties
Faculties > Faculty of Engineering Science
Faculties > Faculty of Engineering Science > Chair Ceramic Materials
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 530 Physics
600 Technology, medicine, applied sciences > 620 Engineering
Date Deposited: 10 Jan 2020 10:15
Last Modified: 24 Jul 2020 05:42
URI: https://eref.uni-bayreuth.de/id/eprint/53704