Aerosol Research
Aerosol Research
Aerosol Research
Articles | Volume 1, issue 1
Articles | Volume 1, issue 1
https://doi.org/10.5194/ar-1-1-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/ar-1-1-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 1, issue 1
Research article
 | 
27 Jun 2023
Research article |  | 27 Jun 2023

A new working fluid for condensation particle counters for use in sensitive working environments

Patrick Weber, Oliver F. Bischof, Benedikt Fischer, Marcel Berg, Jannik Schmitt, Gerhard Steiner, Lothar Keck, Andreas Petzold, and Ulrich Bundke

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Latest update: 19 Jun 2025
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Short summary
The aerosol number concentration is essential information for aerosol science. A condensation particle counter (CPC) can robustly provide this information. Butanol is often used as a working fluid in a CPC. We could show that dimethyl sulfoxide (DMSO) behaves equivalently to butanol in terms of the instrument`s counting efficiency, cut-off diameter and concentration linearity. We tested this on different aerosols, including sodium chloride, ammonium sulfate and fresh combustion soot.
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