Journal of Sensors and Sensor Systems
Journal of Sensors and Sensor Systems
JSSS
Articles | Volume 15, issue 1
Articles | Volume 15, issue 1
https://doi.org/10.5194/jsss-15-35-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/jsss-15-35-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 15, issue 1
Regular research article
 | 
04 Mar 2026
Regular research article |  | 04 Mar 2026

Inline gas-phase sampling methods for contaminant monitoring in polyolefin recycling

Wolfhard Reimringer, Helen Haug, and Tilman Sauerwald

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Short summary
This article presents first results from our research on the improvement of post-consumer recycled plastics in a suitable measurement situation on the compounding extruder, where the material is molten and by-products are removed by a vacuum. An extraction system was implemented, and samples were analyzed with laboratory methods. The results give insight into occurring substances and show the feasibility of the technique. Guidelines for an online sampling and monitoring system are derived.
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