Atmospheric Measurement Techniques
Atmospheric Measurement Techniques
AMT
Articles | Volume 11, issue 4
Articles | Volume 11, issue 4
https://doi.org/10.5194/amt-11-1851-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-11-1851-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 11, issue 4
Research article
 | 
04 Apr 2018
Research article |  | 04 Apr 2018

An ion-neutral model to investigate chemical ionization mass spectrometry analysis of atmospheric molecules – application to a mixed reagent ion system for hydroperoxides and organic acids

Brian G. Heikes, Victoria Treadaway, Ashley S. McNeill, Indira K. C. Silwal, and Daniel W. O'Sullivan

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Latest update: 28 Aug 2025
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Short summary
A CIMS utilizing a multi-species negative ion chemistry was designed to measure peroxides and organic acids throughout the troposphere from an aircraft. Prior CIMS used a single reagent ion, and the multi-ion approach has the potential to be a significant step forward, although one with analytical risk. Here, a chemical kinetics numerical model is presented which simulates its past water vapor and pressure dependence, providing a test bed to characterize its use in future environments.
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