Articles | Volume 13, issue 5
Atmos. Meas. Tech., 13, 2501–2522, 2020
https://doi.org/10.5194/amt-13-2501-2020

Special issue: The CERN CLOUD experiment (ACP/AMT inter-journal SI)

Atmos. Meas. Tech., 13, 2501–2522, 2020
https://doi.org/10.5194/amt-13-2501-2020

Research article 19 May 2020

Research article | 19 May 2020

Measurement of ammonia, amines and iodine compounds using protonated water cluster chemical ionization mass spectrometry

Joschka Pfeifer et al.

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Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Joschka Pfeifer on behalf of the Authors (27 Feb 2020)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (06 Mar 2020) by Jonathan Abbatt
RR by Anonymous Referee #1 (16 Mar 2020)
RR by Anonymous Referee #2 (22 Mar 2020)
ED: Publish subject to minor revisions (review by editor) (22 Mar 2020) by Jonathan Abbatt
AR by Joschka Pfeifer on behalf of the Authors (06 Apr 2020)  Author's response    Manuscript
ED: Publish as is (17 Apr 2020) by Jonathan Abbatt
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Short summary
Ammonia is an important atmospheric trace gas that affects secondary aerosol formation and, together with sulfuric acid, the formation of new particles. A measurement technique is presented that uses high-resolution mass spectrometry and protonated water clusters for the ultrasensitive detection of ammonia at single-digit parts per trillion by volume levels. The instrument is further capable of measuring amines and a suite of iodine compounds at sub-parts per trillion by volume levels.