Articles | Volume 11, issue 8
Atmos. Meas. Tech., 11, 4763–4773, 2018
https://doi.org/10.5194/amt-11-4763-2018
Atmos. Meas. Tech., 11, 4763–4773, 2018
https://doi.org/10.5194/amt-11-4763-2018

Research article 14 Aug 2018

Research article | 14 Aug 2018

Production of highly oxygenated organic molecules (HOMs) from trace contaminants during isoprene oxidation

Anne-Kathrin Bernhammer et al.

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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 Armin Hansel on behalf of the Authors (09 May 2018)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (04 Jun 2018) by Bin Yuan
RR by Anonymous Referee #4 (16 Jun 2018)
RR by Anonymous Referee #2 (21 Jun 2018)
RR by Anonymous Referee #5 (23 Jun 2018)
ED: Publish subject to minor revisions (review by editor) (26 Jun 2018) by Bin Yuan
AR by Armin Hansel on behalf of the Authors (11 Jul 2018)  Author's response
ED: Publish as is (16 Jul 2018) by Bin Yuan
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Short summary
During new particle formation (NPF) studies from pure isoprene oxidation in the CLOUD chamber at CERN we observed unexpected ion signals. We identified two origins of these signals: first secondary association reactions of protonated isoprene with isoprene within the PTR3 reaction chamber and, second, polymerization of isoprene inside the gas bottle. In order to study NPF from pure isoprene oxidation we had to install a cryogenic trap in the isoprene inlet line to remove polymerized isoprene.