Please use this identifier to cite or link to this item:
http://doi.org/10.25358/openscience-7800
Authors: | Müller, Lars Reinnig, Marc-Christopher Naumann, K. H. Saathoff, H. Mentel, T. F. Donahue, N. M. Hoffmann, Thorsten |
Title: | Formation of 3-methyl-1,2,3-butanetricarboxylic acid via gas phase oxidation of pinonic acid : a mass spectrometric study of SOA aging |
Online publication date: | 4-Oct-2022 |
Year of first publication: | 2012 |
Language: | english |
Abstract: | This paper presents the results of mass spectrometric investigations of the OH-initiated oxidative aging of α-pinene SOA under simulated tropospheric conditions at the large aerosol chamber facility AIDA, Karlsruhe Institute of Technology. In particular, the OH-initiated oxidation of pure pinic and pinonic acid, two well-known oxidation products of α-pinene, was investigated. Two complementary analytical techniques were used, on-line atmospheric pressure chemical ionization/mass spectrometry (APCI/MS) and filter sampling followed by liquid chromatography/mass spectrometry (LC/ESI-MS). The results show that 3-methyl-1,2,3-butanetricarboxylic acid (MBTCA), a very low volatile α-pinene SOA product and a tracer compound for terpene SOA, is formed from the oxidation of pinonic acid and that this oxidation takes place in the gas phase. This finding is confirmed by temperature-dependent aging experiments on whole SOA formed from α-pinene, in which the yield of MBTCA scales with the pinonic acid fraction in the gas phase. Based on the results, several feasible gas-phase radical mechanisms are discussed to explain the formation of MBTCA from OH-initiated pinonic acid oxidation. |
DDC: | 540 Chemie 540 Chemistry and allied sciences |
Institution: | Johannes Gutenberg-Universität Mainz |
Department: | FB 09 Chemie, Pharmazie u. Geowissensch. |
Place: | Mainz |
ROR: | https://ror.org/023b0x485 |
DOI: | http://doi.org/10.25358/openscience-7800 |
Version: | Published version |
Publication type: | Zeitschriftenaufsatz |
License: | CC BY |
Information on rights of use: | https://creativecommons.org/licenses/by/3.0/ |
Journal: | Atmospheric chemistry and physics 12 3 |
Pages or article number: | 1483 1496 |
Publisher: | Copernicus Publ. |
Publisher place: | Göttingen |
Issue date: | 2012 |
ISSN: | 1680-7324 1680-7316 |
Publisher URL: | http://dx.doi.org/10.5194/acp-12-1483-2012 |
Publisher DOI: | 10.5194/acp-12-1483-2012 |
Appears in collections: | DFG-OA-Publizieren (2012 - 2017) |
Files in This Item:
File | Description | Size | Format | ||
---|---|---|---|---|---|
formation_of_3methyl123butane-20220913234947300.pdf | 1.36 MB | Adobe PDF | View/Open |