Articles | Volume 12, issue 7
Atmos. Meas. Tech., 12, 3841–3851, 2019
https://doi.org/10.5194/amt-12-3841-2019
Atmos. Meas. Tech., 12, 3841–3851, 2019
https://doi.org/10.5194/amt-12-3841-2019

Research article 12 Jul 2019

Research article | 12 Jul 2019

Separation and detection of aqueous atmospheric aerosol mimics using supercritical fluid chromatography–mass spectrometry

Daisy N. Grace et al.

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AR: Author's response | RR: Referee report | ED: Editor decision
AR by Melissa Galloway on behalf of the Authors (30 May 2019)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (10 Jun 2019) by Yoshiteru Iinuma
RR by Anonymous Referee #1 (25 Jun 2019)
ED: Publish as is (26 Jun 2019) by Yoshiteru Iinuma
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Short summary
The identification and quantification of compounds within an atmospheric particle can be difficult to achieve. We present a supercritical fluid chromatography method to separate these compounds prior to mass spectrometry analysis. The aqueous methylglyoxal–ammonium sulfate system was used as a proxy for atmospheric aerosol; polar columns combined with a carbon dioxide and methanol mobile phase provided the most efficient separation. This method can be extended to other atmospheric systems.