Secondary organic material formed by methylglyoxal in aqueous aerosol mimics – Part 2: Product identification using Aerosol-CIMS
Item
Title (Dublin Core)
Secondary organic material formed by methylglyoxal in aqueous aerosol mimics – Part 2: Product identification using Aerosol-CIMS
Description (Dublin Core)
We used chemical ionization mass spectrometry with a volatilization flow tube inlet (Aerosol-CIMS) to characterize secondary organic material formed by methylglyoxal with ammonium sulfate in aqueous aerosol mimics. Bulk reaction mixtures were diluted and atomized to form submicron aerosol particles. Organics were detected using Aerosol-CIMS in positive and negative ion mode using I<sup>−</sup> and H<sub>3</sub>O<sup>+</sup>·(H<sub>2</sub>O)<sub><I>n</I></sub> as reagent ions. The results are consistent with aldol condensation products, carbon-nitrogen species, sulfur-containing compounds, and oligomeric species up to 759 amu. These results support previous observations by us and others that ammonium sulfate plays a critical role in the SOA formation chemistry of dicarbonyl compounds.
Creator (Dublin Core)
Sareen, N.
Shapiro, E. L.
Schwier, A. N.
McNeill, V. F.
Date (Dublin Core)
2018-08-10
Type (Dublin Core)
Text
Format (Dublin Core)
application/pdf
Identifier (Dublin Core)
10.5194/acpd-9-15567-2009
https://acp.copernicus.org/preprints/acp-2009-435/
Source (Dublin Core)
eISSN: 1680-7324
Language (Dublin Core)
eng
