Chemical Characterization of Gas- and Particle-Phase Products from the Ozonolysis of alpha-Pinene in the Presence of Dimethylamine

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Duporte , G , Riva , M , Parshintsev , J , Heikkinen , E , Barreira , L M F , Myllys , N , Heikkinen , L , Hartonen , K , Kulmala , M , Ehn , M & Riekkola , M-L 2017 , ' Chemical Characterization of Gas- and Particle-Phase Products from the Ozonolysis of alpha-Pinene in the Presence of Dimethylamine ' , Environmental Science & Technology , vol. 51 , no. 10 , pp. 5602-5610 . https://doi.org/10.1021/acs.est.6b06231

Title: Chemical Characterization of Gas- and Particle-Phase Products from the Ozonolysis of alpha-Pinene in the Presence of Dimethylamine
Author: Duporte, Geoffroy; Riva, Matthieu; Parshintsev, Jevgeni; Heikkinen, Enna; Barreira, Luis M. F.; Myllys, Nanna; Heikkinen, Liine; Hartonen, Kari; Kulmala, Markku; Ehn, Mikael; Riekkola, Marja-Liisa
Contributor organization: Department of Chemistry
Laboratory of Analytical Chemistry
Department of Physics
INAR Physics
Date: 2017-05-16
Language: eng
Number of pages: 9
Belongs to series: Environmental Science & Technology
ISSN: 0013-936X
DOI: https://doi.org/10.1021/acs.est.6b06231
URI: http://hdl.handle.net/10138/318935
Abstract: Amines are recognized as key compounds in new particle formation (NPF) and secondary organic aerosol (SOA) formation. In addition, ozonolysis of a-pinene contributes substantially to the formation of biogenic SOAs in the atmosphere. In the present study, ozonolysis of a-pinene in the presence of dimethylamine (DMA) was investigated in a flow tube reactor. Effects of amines on SOA formation and chemical composition were examined. Enhancement of NPF and SOA formation was observed in the presence of DMA. Chemical characterization of gas and particle-phase products by high-resolution mass spectrometric techniques revealed the formation of nitrogen containing compounds. Reactions between ozonolysis reaction products of a-pinene, such as pinonaldehyde or pinonic acid, and DMA were observed. Possible reaction pathways are suggested for the formation of the reaction products. Some of the compounds identified in the laboratory study were also observed in aerosol samples (PM1) collected at the SMEAR II station (Hyytiala, Finland) suggesting that DMA might affect the ozonolysis of a-pinene in ambient conditions.
Subject: SECONDARY ORGANIC AEROSOL
SULFURIC ACID-AMINE
ATMOSPHERIC AEROSOLS
OXIDATION-PRODUCTS
RELATIVE-HUMIDITY
MASS-SPECTROMETRY
FORMATION EVENTS
NUCLEATION
WATER
VOLATILITY
116 Chemical sciences
114 Physical sciences
1172 Environmental sciences
Peer reviewed: Yes
Usage restriction: openAccess
Self-archived version: acceptedVersion


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