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@ARTICLE{Brownwood:892946,
author = {Brownwood, Bellamy and Turdziladze, Avtandil and Hohaus,
Thorsten and Wu, Rongrong and Mentel, Thomas F. and
Carlsson, Philip T. M. and Tsiligiannis, Epameinondas and
Hallquist, Mattias and Andres, Stefanie and Hantschke, Luisa
and Reimer, David and Rohrer, Franz and Tillmann, Ralf and
Winter, Benjamin and Liebmann, Jonathan and Brown, Steven S.
and Kiendler-Scharr, Astrid and Novelli, Anna and Fuchs,
Hendrik and Fry, Juliane},
title = {{G}as-{P}article {P}artitioning and {SOA} {Y}ields of
{O}rganonitrate {P}roducts from {NO} 3 -{I}nitiated
{O}xidation of {I}soprene under {V}aried {C}hemical
{R}egimes},
journal = {ACS earth and space chemistry},
volume = {5},
number = {4},
issn = {2472-3452},
address = {Washington, DC},
publisher = {ACS Publications},
reportid = {FZJ-2021-02445},
pages = {785 - 800},
year = {2021},
abstract = {Alkyl nitrate (AN) and secondary organic aerosol (SOA) from
the reaction of nitrate radicals (NO3) with isoprene were
observed in the Simulation of Atmospheric PHotochemistry In
a large Reaction (SAPHIR) chamber during the NO3Isop
campaign in August 2018. Based on 15 day-long experiments
under various reaction conditions, we conclude that the
reaction has a nominally unity molar AN yield (observed
range 90 ± $40\%)$ and an SOA mass yield of OA + organic
nitrate aerosol of $13–15\%$ (with ∼50 μg m–3
inorganic seed aerosol and 2–5 μg m–3 total organic
aerosol). Isoprene (5–25 ppb) and oxidant (typically
∼100 ppb O3 and 5–25 ppb NO2) concentrations and aerosol
composition (inorganic and organic coating) were varied
while remaining close to ambient conditions, producing
similar AN and SOA yields under all regimes. We observe the
formation of dinitrates upon oxidation of the second double
bond only once the isoprene precursor is fully consumed. We
determine the bulk partitioning coefficient for ANs (Kp ∼
10–3 m3 μg–1), indicating an average volatility
corresponding to a C5 hydroxy hydroperoxy nitrate.},
cin = {IEK-8},
ddc = {550},
cid = {I:(DE-Juel1)IEK-8-20101013},
pnm = {211 - Die Atmosphäre im globalen Wandel (POF4-211)},
pid = {G:(DE-HGF)POF4-211},
typ = {PUB:(DE-HGF)16},
pubmed = {33889791},
UT = {WOS:000641221000004},
doi = {10.1021/acsearthspacechem.0c00311},
url = {https://juser.fz-juelich.de/record/892946},
}