Physics
Scientific paper
Mar 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004georl..3105117k&link_type=abstract
Geophysical Research Letters, Volume 31, Issue 5, CiteID L05117
Physics
10
Atmospheric Composition And Structure: Chemical Kinetic And Photochemical Properties, Atmospheric Composition And Structure: Troposphere-Composition And Chemistry, Atmospheric Composition And Structure: Instruments And Techniques
Scientific paper
Kinetic studies conducted in the new atmosphere simulation chamber SAPHIR at the Research Center Jülich allow a thorough investigation of oxidation of isoprene induced by O3 and the OH radical under atmospheric conditions. Rate coefficients for the O3-isoprene and OH-isoprene reaction are determined from measured concentration-time profiles. For the reaction of O3 with isoprene the rate coefficient is determined to be (9.6 +/- 0.7) × 10-18 cm3molecule-1 s-1 at 286 K. The rate coefficient for the reaction OH + isoprene is (10.0 +/- 1.2) × 10-11 cm3molecule-1 s-1 at 294 K. The kinetic parameters determined in SAPHIR at atmospheric concentrations agree well with recent recommendations.
Brauers Th.
Dorn Hans-Peter
Holland Frank
Karl M.
Komenda M.
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