Aerosol Research
Aerosol Research
Aerosol Research
Articles | Volume 2, issue 1
Articles | Volume 2, issue 1
https://doi.org/10.5194/ar-2-199-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/ar-2-199-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 2, issue 1
Research article
 | 
24 Jun 2024
Research article |  | 24 Jun 2024

Reduced particle composition dependence in condensation particle counters

Peter J. Wlasits, Joonas Enroth, Joonas Vanhanen, Aki Pajunoja, Hinrich Grothe, Paul M. Winkler, and Dominik Stolzenburg

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Short summary
We highlight that the composition dependence of the counting efficiency of condensation particle counters can be immensely reduced by choice of the working fluid. A butanol- and a propylene glycol-based version of the Airmodus A30 was calibrated using a set of four different seed particles. Our study shows that composition-dependent counting efficiencies almost vanish in the case of the propylene glycol-based CPC. Simulations of supersaturation profiles were used to explain the results.
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