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@ARTICLE{Fisseha:55985,
author = {Fisseha, R. and Dommen, J. and Gaeggeler, K. and
Weingartner, E. and Samburova, V. and Kalberer, M. and
Baltensperger, U.},
title = {{O}nline gas and aerosol measurement of water soluble
carboxylic acids in {Z}urich},
journal = {Journal of Geophysical Research},
volume = {111},
issn = {0148-0227},
address = {Washington, DC},
publisher = {Union},
reportid = {PreJuSER-55985},
pages = {D12316},
year = {2006},
note = {Record converted from VDB: 12.11.2012},
abstract = {[ 1] We discuss the diurnal and seasonal variability of low
molecular weight organic acids in Zurich city on the basis
of online quasi-continuous measurement in the gas and
aerosol phase using a wet effluent diffusion denuder/aerosol
collector(WEDD/AC) coupled to ion chromatography. The
measurements were performed during August - September 2002
and March 2003. Acetic acid exhibited the highest
concentration in the gas phase during all the measurement
periods, followed by formic acid. Oxalic acid was
predominantly found in the aerosol phase and often below the
detection limit in the gas phase. In addition, filter
samples were analyzed using ion chromatography - mass
spectrometry (IC-MS) to provide more information on organic
acids in the aerosol phase. From the offline IC-MS
measurements, 20 monocarboxylic, dicarboxylic, and
tricarboxylic acids were determined. In addition, more than
20 different masses were detected with the MS; however,
identification of the organic acids was not possible. The
sum of the carboxylic acids contributed on average $2\%$ to
the water soluble organic carbon (WSOC). The fraction of
dicarboxylic acids to the WSOC was higher in summer compared
to winter suggesting that dicarboxylic acids are mainly a
result of photochemical reactions in summer whereas in
winter they mainly result from primary sources.},
keywords = {J (WoSType)},
cin = {ICG-II},
ddc = {550},
cid = {I:(DE-Juel1)VDB48},
pnm = {Atmosphäre und Klima},
pid = {G:(DE-Juel1)FUEK406},
shelfmark = {Meteorology $\&$ Atmospheric Sciences},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000238938600003},
doi = {10.1029/2005JD006782},
url = {https://juser.fz-juelich.de/record/55985},
}