Articles | Volume 19, issue 19
https://doi.org/10.5194/amt-19-6357-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-19-6357-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Towards harmonized measurements of condensable vapors: insights from the intercomparison of six chemical ionization mass spectrometers at a boreal forest site
Institute for Atmospheric and Earth System Research, University of Helsinki, Helsinki, 00014, Finland
Mihai Ciobanu
Climate and Atmosphere Research Center, The Cyprus Institute, Nicosia 2121, Cyprus
Neha Deot
Climate and Atmosphere Research Center, The Cyprus Institute, Nicosia 2121, Cyprus
Institute for Atmospheric and Earth System Research, University of Helsinki, Helsinki, 00014, Finland
Tuija Jokinen
Climate and Atmosphere Research Center, The Cyprus Institute, Nicosia 2121, Cyprus
Chengfeng Liu
Institute for Atmospheric and Earth System Research, University of Helsinki, Helsinki, 00014, Finland
Qi Yuan
Aerosol and Haze Laboratory, Advanced Innovation Centre for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
Institute for Atmospheric and Earth System Research, University of Helsinki, Helsinki, 00014, Finland
Lauriane L. J. Quéléver
Institute for Atmospheric and Earth System Research, University of Helsinki, Helsinki, 00014, Finland
Spiro Jorga
Tofwerk AG, Thun, 3645, Switzerland
Veronika Pospisilova
Tofwerk AG, Thun, 3645, Switzerland
Lisa J. Beck
Institute for Atmospheric and Environmental Sciences, Goethe University Frankfurt, 60438 Frankfurt am Main, Germany
now at: Deutscher Wetterdienst, 63067 Offenbach am Main, Germany
Mario Simon
Institute for Atmospheric and Environmental Sciences, Goethe University Frankfurt, 60438 Frankfurt am Main, Germany
Marcel Zauner-Wieczorek
Institute for Atmospheric and Environmental Sciences, Goethe University Frankfurt, 60438 Frankfurt am Main, Germany
Andreas Kürten
Institute for Atmospheric and Environmental Sciences, Goethe University Frankfurt, 60438 Frankfurt am Main, Germany
Ruben Soler
EUPHORE Labs., CEAM Foundation, Paterna, 46980, Spain
Teresa Vera
EUPHORE Labs., CEAM Foundation, Paterna, 46980, Spain
Amalia Muñoz
EUPHORE Labs., CEAM Foundation, Paterna, 46980, Spain
Lauri R. Ahonen
Institute for Atmospheric and Earth System Research, University of Helsinki, Helsinki, 00014, Finland
Nanjing-Helsinki Institute in Atmospheric and Earth System Sciences, Nanjing University, Nanjing, 210023, China
Tuukka Petäjä
Institute for Atmospheric and Earth System Research, University of Helsinki, Helsinki, 00014, Finland
Institute for Atmospheric and Earth System Research, University of Helsinki, Helsinki, 00014, Finland
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Latest update: 06 Oct 2026
Short summary
Chemical ionization mass spectrometry is widely used to detect condensable vapors as sulfuric acid and highly oxygenated organic molecules, but results across studies are not always comparable. In summer 2024, an intercomparison campaign involving six instruments was conducted at a boreal forest site. Comparable measurements were achievable when all calibration and correction factors were applied. Instrument behavior depended more on inlet design and operating conditions than reagent ion choice.
Chemical ionization mass spectrometry is widely used to detect condensable vapors as sulfuric...