Articles | Volume 1, issue 1
https://doi.org/10.5194/ar-1-1-2023
https://doi.org/10.5194/ar-1-1-2023
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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Cited articles

Aitken, J.: On the Number of Dust Particles in the Atmosphere1, Nature, 37, 428–430, https://doi.org/10.1038/037428a0, 1888. 
Antoine, C.: Tensions des vapeurs: nouvelle relation entre les tensions et les températures, Comptes Rendus des Séances de l'Académie des Sciences, 107, 681–684, 778–780, 836–837, 1888. 
Banse, D. F., Esfeld, K., Hermann, M., Sierau, B., and Wiedensohler, A.: Particle counting efficiency of the TSI CPC 3762 for different operating parameters, J. Aerosol Sci., 32, 157–161, https://doi.org/10.1016/S0021-8502(00)00060-4, 2001. 
Bischof, O. F.: Application-Specific Calibration of Condensation Particle Counters under Low Pressure Conditions, Dissertation, Verlag des Forschungszentrums Jülich, Energie Umwelt, Band 576, ISBN 978-3-95806-629-8, 2022. 
Bischof, O. F., Weber, P., Bundke, U., Petzold, A., and Kiendler-Scharr, A.: Characterization of the Miniaturized Inverted Flame Burner as a Combustion Source to Generate a Nanoparticle Calibration Aerosol, Aerosol, Emiss. Control Sci. Technol., 6, 37–46, https://doi.org/10.1007/s40825-019-00147-w​​​​​​​, 2020. 
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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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