Dicarbonyl products of the OH radical-initiated reaction of a series of aromatic hydrocarbons

Janet Arey, Genevieve Obermeyer, Sara M. Aschmann, Sulekha Chattopadhyay, Roland D. Cusick, Roger Atkinson

Research output: Research - peer-reviewArticle

Abstract

Aromatic hydrocarbons are important constituents of vehicle exhaust and of nonmethane organic compounds in ambient urban air. We used a derivatization technique with methane positive chemical ionization gas chromatography/mass spectrometry to investigate the carbonyl products formed from the OH radical-initiated reactions of toluene, the xylenes, and the trimethyl-benzenes. Characteristic diderivatized molecularions of dicarbonyl products were obtained. Consistent with previous studies, the 1,2-dicarbonyls glyoxal, methylglyoxal, and biacetyl were observed, as were all but one of the possible unsaturated 1,4-dicarbonyl coproducts. Unsaturated 1,4-diketones had formation yields similar to their potential coproduct 1,2-dicarbonyls. However, apart from HC(O)CH=CHCHO, unsaturated 1,4-dialdehydes and keto-aldehydes were generally observed in lower yield than their potential 1,2-dicarbonyl coproducts.

LanguageEnglish (US)
Pages683-689
Number of pages7
JournalEnvironmental Science and Technology
Volume43
Issue number3
DOIs
StatePublished - Feb 1 2009
Externally publishedYes

Fingerprint

Glyoxal
Pyruvaldehyde
Diacetyl
Aromatic Hydrocarbons
Xylenes
Methane
Benzene
Organic compounds
Aldehydes
Gas chromatography
Ionization
Mass spectrometry
Air
aromatic hydrocarbon
product
xylene
aldehyde
toluene
benzene
organic compound

ASJC Scopus subject areas

  • Chemistry(all)
  • Environmental Chemistry

Cite this

Arey, J., Obermeyer, G., Aschmann, S. M., Chattopadhyay, S., Cusick, R. D., & Atkinson, R. (2009). Dicarbonyl products of the OH radical-initiated reaction of a series of aromatic hydrocarbons. Environmental Science and Technology, 43(3), 683-689. DOI: 10.1021/es8019098

Dicarbonyl products of the OH radical-initiated reaction of a series of aromatic hydrocarbons. / Arey, Janet; Obermeyer, Genevieve; Aschmann, Sara M.; Chattopadhyay, Sulekha; Cusick, Roland D.; Atkinson, Roger.

In: Environmental Science and Technology, Vol. 43, No. 3, 01.02.2009, p. 683-689.

Research output: Research - peer-reviewArticle

Arey, J, Obermeyer, G, Aschmann, SM, Chattopadhyay, S, Cusick, RD & Atkinson, R 2009, 'Dicarbonyl products of the OH radical-initiated reaction of a series of aromatic hydrocarbons' Environmental Science and Technology, vol 43, no. 3, pp. 683-689. DOI: 10.1021/es8019098
Arey J, Obermeyer G, Aschmann SM, Chattopadhyay S, Cusick RD, Atkinson R. Dicarbonyl products of the OH radical-initiated reaction of a series of aromatic hydrocarbons. Environmental Science and Technology. 2009 Feb 1;43(3):683-689. Available from, DOI: 10.1021/es8019098
Arey, Janet ; Obermeyer, Genevieve ; Aschmann, Sara M. ; Chattopadhyay, Sulekha ; Cusick, Roland D. ; Atkinson, Roger. / Dicarbonyl products of the OH radical-initiated reaction of a series of aromatic hydrocarbons. In: Environmental Science and Technology. 2009 ; Vol. 43, No. 3. pp. 683-689
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