Articles | Volume 21, issue 4
Atmos. Chem. Phys., 21, 2881–2894, 2021
https://doi.org/10.5194/acp-21-2881-2021
Atmos. Chem. Phys., 21, 2881–2894, 2021
https://doi.org/10.5194/acp-21-2881-2021

Research article 25 Feb 2021

Research article | 25 Feb 2021

Aqueous-phase behavior of glyoxal and methylglyoxal observed with carbon and oxygen K-edge X-ray absorption spectroscopy

Georgia Michailoudi et al.

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AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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AR: Author's response | RR: Referee report | ED: Editor decision
AR by Georgia Michailoudi on behalf of the Authors (05 Dec 2020)  Author's response    Manuscript
ED: Publish subject to technical corrections (29 Dec 2020) by Frank Keutsch
AR by Georgia Michailoudi on behalf of the Authors (06 Jan 2021)  Author's response    Manuscript
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Short summary
This study provides insight into hydration of two significant atmospheric compounds, glyoxal and methylglyoxal. Using synchrotron radiation excited X-ray absorption spectroscopy, we confirm that glyoxal is fully hydrated in water, and for the first time, we experimentally detect enol structures in aqueous methylglyoxal. Our results support the contribution of these compounds to secondary organic aerosol formation, known to have a large uncertainty in atmospheric models and climate predictions.
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