Articles | Volume 12, issue 2
Research article
08 Feb 2019
Research article |  | 08 Feb 2019

Measurements of hydroperoxy radicals (HO2) at atmospheric concentrations using bromide chemical ionisation mass spectrometry

Sascha R. Albrecht, Anna Novelli, Andreas Hofzumahaus, Sungah Kang, Yare Baker, Thomas Mentel, Andreas Wahner, and Hendrik Fuchs


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 Sascha Albrecht on behalf of the Authors (10 Dec 2018)  Author's response   Manuscript 
ED: Referee Nomination & Report Request started (12 Dec 2018) by Lisa Whalley
RR by Anonymous Referee #2 (08 Jan 2019)
ED: Publish as is (16 Jan 2019) by Lisa Whalley
AR by Sascha Albrecht on behalf of the Authors (21 Jan 2019)
Short summary
Within this study we demonstrate reliable measurement of hydroperoxy (HO2) radicals via chemical ionisation mass spectrometry. HO2 is detected as an ion cluster with bromide ions, which allows a selective detection. This direct and sensitive measurement provides reliable data of HO2 radical concentrations in the atmosphere as demonstrated in the first application in simulation chamber experiments.