Articles | Volume 15, issue 24
https://doi.org/10.5194/amt-15-7353-2022
© Author(s) 2022. 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-15-7353-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
22 Dec 2022
Research article |
| 22 Dec 2022
| 22 Dec 2022
Chemical ionization mass spectrometry utilizing ammonium ions (NH4+ CIMS) for measurements of organic compounds in the atmosphere
Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, Boulder, CO, USA
NOAA Chemical Sciences Laboratory, Boulder, CO, USA
Matthew M. Coggon
NOAA Chemical Sciences Laboratory, Boulder, CO, USA
Chelsea E. Stockwell
Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, Boulder, CO, USA
NOAA Chemical Sciences Laboratory, Boulder, CO, USA
Jessica B. Gilman
NOAA Chemical Sciences Laboratory, Boulder, CO, USA
Michael A. Robinson
Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, Boulder, CO, USA
NOAA Chemical Sciences Laboratory, Boulder, CO, USA
Department of Chemistry, University of Colorado Boulder, Boulder, CO, USA
Martin Breitenlechner
Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, Boulder, CO, USA
NOAA Chemical Sciences Laboratory, Boulder, CO, USA
Aaron Lamplugh
Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, Boulder, CO, USA
NOAA Chemical Sciences Laboratory, Boulder, CO, USA
now at: Institute of Behavioral Science, University of Colorado Boulder, Boulder, Colorado, USA
John D. Crounse
Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA, USA
Paul O. Wennberg
Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA, USA
Division of Engineering and Applied Science, California Institute of Technology, Pasadena, CA, USA
J. Andrew Neuman
Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, Boulder, CO, USA
NOAA Chemical Sciences Laboratory, Boulder, CO, USA
Gordon A. Novak
Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, Boulder, CO, USA
NOAA Chemical Sciences Laboratory, Boulder, CO, USA
Patrick R. Veres
NOAA Chemical Sciences Laboratory, Boulder, CO, USA
Steven S. Brown
NOAA Chemical Sciences Laboratory, Boulder, CO, USA
Department of Chemistry, University of Colorado Boulder, Boulder, CO, USA
Carsten Warneke
CORRESPONDING AUTHOR
NOAA Chemical Sciences Laboratory, Boulder, CO, USA
Data sets
SUNVEx/RECAP Data Download Chemical Sciences Laboratory https://csl.noaa.gov/groups/csl7/measurements/2021sunvex/GroundLA/DataDownload/
Short summary
We describe the development and operation of a chemical ionization mass spectrometer using an ammonium–water cluster (NH4+·H2O) as a reagent ion. NH4+·H2O is a highly versatile reagent ion for measurements of a wide range of oxygenated organic compounds. The major product ion is the cluster with NH4+ produced via ligand-switching reactions. The instrumental sensitivities of analytes depend on the binding energy of the analyte–NH4+ cluster; sensitivities can be estimated using voltage scanning.
We describe the development and operation of a chemical ionization mass spectrometer using an...
