Atmospheric Measurement Techniques
Atmospheric Measurement Techniques
AMT
Articles | Volume 11, issue 7
Articles | Volume 11, issue 7
https://doi.org/10.5194/amt-11-4413-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-11-4413-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 11, issue 7
Research article
 | 
25 Jul 2018
Research article |  | 25 Jul 2018

A novel semi-direct method to measure OH reactivity by chemical ionization mass spectrometry (CIMS)

Jennifer B. A. Muller, Thomas Elste, Christian Plass-Dülmer, Georg Stange, Robert Holla, Anja Claude, Jennifer Englert, Stefan Gilge, and Dagmar Kubistin

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Latest update: 25 Dec 2024
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Short summary
The hydroxyl radical (OH) largely controls tropospheric trace gas removal and the inverse of OH lifetime, OH reactivity, is a useful measure to investigate the oxidation capacity of the atmosphere. This paper presents a novel method to measure OH reactivity using an operational chemical ionization mass spectrometer (CIMS) for OH measurements at the GAW site Hohenpeissenberg, Germany. It includes the analysis of measurement uncertainties and demonstrates its suitability for long-term monitoring.
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