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http://doi.org/10.25358/openscience-7800
Autoren: | Müller, Lars Reinnig, Marc-Christopher Naumann, K. H. Saathoff, H. Mentel, T. F. Donahue, N. M. Hoffmann, Thorsten |
Titel: | Formation of 3-methyl-1,2,3-butanetricarboxylic acid via gas phase oxidation of pinonic acid : a mass spectrometric study of SOA aging |
Online-Publikationsdatum: | 4-Okt-2022 |
Erscheinungsdatum: | 2012 |
Sprache des Dokuments: | Englisch |
Zusammenfassung/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-Sachgruppe: | 540 Chemie 540 Chemistry and allied sciences |
Veröffentlichende Institution: | Johannes Gutenberg-Universität Mainz |
Organisationseinheit: | FB 09 Chemie, Pharmazie u. Geowissensch. |
Veröffentlichungsort: | Mainz |
ROR: | https://ror.org/023b0x485 |
DOI: | http://doi.org/10.25358/openscience-7800 |
Version: | Published version |
Publikationstyp: | Zeitschriftenaufsatz |
Nutzungsrechte: | CC BY |
Informationen zu den Nutzungsrechten: | https://creativecommons.org/licenses/by/3.0/ |
Zeitschrift: | Atmospheric chemistry and physics 12 3 |
Seitenzahl oder Artikelnummer: | 1483 1496 |
Verlag: | Copernicus Publ. |
Verlagsort: | Göttingen |
Erscheinungsdatum: | 2012 |
ISSN: | 1680-7324 1680-7316 |
URL der Originalveröffentlichung: | http://dx.doi.org/10.5194/acp-12-1483-2012 |
DOI der Originalveröffentlichung: | 10.5194/acp-12-1483-2012 |
Enthalten in den Sammlungen: | DFG-OA-Publizieren (2012 - 2017) |
Dateien zu dieser Ressource:
Datei | Beschreibung | Größe | Format | ||
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formation_of_3methyl123butane-20220913234947300.pdf | 1.36 MB | Adobe PDF | Öffnen/Anzeigen |