Secondary organic aerosol formation from reaction of tertiary amines with nitrate radical
Item
Title (Dublin Core)
Secondary organic aerosol formation from reaction of tertiary amines with nitrate radical
Description (Dublin Core)
Secondary organic aerosol formation from the reaction of tertiary amines with nitrate radical was investigated in an indoor environmental chamber. Particle chemistry was monitored using a high resolution aerosol mass spectrometer while gas-phase species were detected using a proton transfer reaction mass spectrometer. Trimethylamine, triethylamine and tributylamine were studied. Results indicate that tributylamine forms the most aerosol mass followed by trimethylamine and triethylamine respectively. Spectra from the aerosol mass spectrometer indicate the formation of complex non-salt aerosol products. We propose a reaction mechanism that proceeds via abstraction of a proton by nitrate radical followed by RO<sub>2</sub> chemistry. Rearrangement of the aminyl alkoxy radical through hydrogen shift leads to the formation of hydroxylated amides, which explain most of the higher mass ions in the mass spectra. These experiments show that oxidation of tertiary amines by nitrate radical may be an important night-time source of secondary organic aerosol.
Creator (Dublin Core)
Erupe, M. E.
Price, D. J.
Silva, P. J.
Malloy, Q. G. J.
Qi, L.
Warren, B.
Cocker III, D. R.
Date (Dublin Core)
2018-08-10
Type (Dublin Core)
Text
Format (Dublin Core)
application/pdf
Identifier (Dublin Core)
10.5194/acpd-8-16585-2008
https://acp.copernicus.org/preprints/acpd-2008-0376/
Source (Dublin Core)
eISSN: 1680-7324
Language (Dublin Core)
eng
