Atmospheric Measurement Techniques
Atmospheric Measurement Techniques
AMT
Articles | Volume 19, issue 15
Articles | Volume 19, issue 15
https://doi.org/10.5194/amt-19-5243-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-19-5243-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 19, issue 15
Research article
 | 
12 Aug 2026
Research article |  | 12 Aug 2026

Evaluation of DMSO as working fluid in condensation particle counters

Sarah Kirchhoff, Patrick Weber, Oliver F. Bischof, Gerhard Steiner, Christian Kunath, Lothar Keck, Victoria M. Fruhmann, Helmut Krasa, Alexander Bergmann, Andreas Petzold, and Ulrich Bundke

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Short summary
We evaluated dimethyl sulfoxide (DMSO) as a safe, non-flammable working fluid for condensation particle counters, comparing it with butanol under varied pressures, temperatures, and aerosols. Laboratory, field, and simulation results show reliable particle activation, comparable counting efficiency, reduced fluid use, and stable long-term operation. Mixtures with water extend usability, supporting safe monitoring in remote or harsh environments.
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