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@ARTICLE{Sang:810538,
author = {Sang, X. F. and Gensch, I. and Kammer, B. and Khan, A. and
Kleist, E. and Laumer, W. and Schlag, P. and Schmitt,
Sebastian and Wildt, J. and Zhao, R. and Mungall, E. L. and
Abbatt, J. P. D. and Kiendler-Scharr, A.},
title = {{C}hemical stability of levoglucosan: {A}n isotopic
perspective},
journal = {Geophysical research letters},
volume = {43},
number = {10},
issn = {0094-8276},
address = {Hoboken, NJ},
publisher = {Wiley},
reportid = {FZJ-2016-03201},
pages = {5419 - 5424},
year = {2016},
abstract = {The chemical stability of levoglucosan was studied by
exploring its isotopic fractionation during the oxidation by
hydroxyl radicals. Aqueous solutions as well as mixed
(NH4)2SO4-levoglucosan particles were exposed to OH. In both
cases, samples experiencing different extents of processing
were isotopically analyzed by Thermal Desorption-Gas
Chromatography-Isotope Ratio Mass Spectrometry (TD-GC-IRMS).
From the dependence of levoglucosan δ13C and concentration
on the reaction extent, the kinetic isotope effect (KIE) of
the OH oxidation reactions was determined to be
1.00187±0.00027 and 1.00229±0.00018, respectively. Both
show good agreement within the uncertainty range. For the
heterogeneous oxidation of particulate levoglucosan by
gas-phase OH, a reaction rate constant of
(2.67±0.03)·10−12 cm3 molecule−1S−1 was derived. The
laboratory kinetic data, together with isotopic source and
ambient observations, give information on the extent of
aerosol chemical processing in the atmosphere.},
cin = {IEK-8 / IBG-2},
ddc = {550},
cid = {I:(DE-Juel1)IEK-8-20101013 / I:(DE-Juel1)IBG-2-20101118},
pnm = {243 - Tropospheric trace substances and their
transformation processes (POF3-243) / HITEC - Helmholtz
Interdisciplinary Doctoral Training in Energy and Climate
Research (HITEC) (HITEC-20170406)},
pid = {G:(DE-HGF)POF3-243 / G:(DE-Juel1)HITEC-20170406},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000378347500091},
doi = {10.1002/2016GL069179},
url = {https://juser.fz-juelich.de/record/810538},
}