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@ARTICLE{Fisseha:4242,
author = {Fisseha, R. and Spahn, H. and Wegener, R. and Hohaus, T.
and Brasse, G. and Wissel, H. and Tillmann, R. and Wahner,
A. and Koppmann, R. and Kiendler-Scharr, A.},
title = {{S}table carbon isotope composition of secondary organic
aerosol from ß-pinene oxidation},
journal = {Journal of Geophysical Research},
volume = {114},
issn = {0148-0227},
address = {Washington, DC},
publisher = {Union},
reportid = {PreJuSER-4242},
pages = {D02304},
year = {2009},
note = {Record converted from VDB: 12.11.2012},
abstract = {A chamber study was carried out to investigate the stable
carbon isotopic composition (delta C-13) of secondary
organic aerosol (SOA) formed from ozonolysis of beta-pinene.
beta-Pinene (600 ppb) with a known delta C-13 value
$(-30.1\%)$ and 500 ppb ozone were injected into the chamber
in the absence of light and the resulting SOA was collected
on preheated quartz fiber filters. Furthermore, delta C-13
values of the gas-phase beta-pinene and one of its oxidation
products, nopinone, were measured using a gas chromatograph
coupled to an isotope ratio mass spectrometer (GC-IRMS).
beta-Pinene was progressively enriched with the heavy carbon
isotope due to the kinetic isotope effect (KIE). The KIE of
the reaction of beta-pinene with ozone was measured to be
1.0026 ((O3)epsilon 2.6 +/- 1.5 parts per thousand). The
delta C-13 value of total secondary organic aerosol was very
similar to that of its precursor (average = -29.6 +/- 0.2
parts per thousand) independent of experiment time.
Nopinone, one of the major oxidation products of
beta-pinene, was found in both the gas and aerosol phases.
The gas-phase nopinone was heavier than the initial
beta-pinene by 1.3 parts per thousand but lighter than the
corresponding aerosol-phase nopinone. On average, the
gas-phase nopinone was lighter by 2.3 parts per thousand
than the corresponding aerosol- phase nopinone. The second
product found in the SOA was detected as acetone, but it
desorbed from the filter at a higher temperature than
nopinone, which indicates that it is a pyrolysis product.
The acetone showed a much lower delta C-13 $(-36.6\%)$
compared to the initial beta-pinene delta C-13.},
keywords = {J (WoSType)},
cin = {ICG-2 / ICG-4 / JARA-HPC},
ddc = {550},
cid = {I:(DE-Juel1)VDB791 / I:(DE-Juel1)VDB793 /
$I:(DE-82)080012_20140620$},
pnm = {Atmosphäre und Klima / Terrestrische Umwelt},
pid = {G:(DE-Juel1)FUEK406 / G:(DE-Juel1)FUEK407},
shelfmark = {Meteorology $\&$ Atmospheric Sciences},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000262749100003},
doi = {10.1029/2008JD011326},
url = {https://juser.fz-juelich.de/record/4242},
}