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@ARTICLE{Rckmann:12234,
      author       = {Röckmann, T. and Walter, S. and Bohn, B. and Spahn, H. and
                      Brauers, T. and Tillmann, R. and Schlosser, E. and Koppmann,
                      R. and Rohrer, F.},
      title        = {{I}sotope effect in the formation of {H}2 from {H}2{CO}
                      studied at the atmospheric simulation chamber {SAPHIR}},
      journal      = {Atmospheric chemistry and physics},
      volume       = {10},
      issn         = {1680-7316},
      address      = {Katlenburg-Lindau},
      publisher    = {EGU},
      reportid     = {PreJuSER-12234},
      pages        = {5343-5357},
      year         = {2010},
      note         = {We thank Cornelia Richter for initial model studies to
                      determine the most suitable conditions in the SAPHIR
                      chamber. This work was funded by the Dutch science
                      foundation NWO, project 816.01.001, H<INF>2</INF> budget.},
      abstract     = {Formaldehyde of known, near-natural isotopic composition
                      was photolyzed in the SAPHIR atmosphere simulation chamber
                      under ambient conditions. The isotopic composition of the
                      product H-2 was used to determine the isotope effects in
                      formaldehyde photolysis. The experiments are sensitive to
                      the molecular photolysis channel, and the radical channel
                      has only an indirect effect and cannot be effectively
                      constrained. The molecular channel kinetic isotope effect
                      KIEmol, the ratio of photolysis frequencies j(HCHO ->
                      CO+H-2)/j(HCDO -> CO+HD) at surface pressure, is determined
                      to be KIEmol = 1.63(-0.046)(+0.038) . This is similar to the
                      kinetic isotope effect for the total removal of HCHO from a
                      recent relative rate experiment (KIEtot= 1.58 +/- 0.03),
                      which indicates that the KIEs in the molecular and radical
                      photolysis channels at surface pressure (approximate to 100
                      kPa) may not be as different as described previously in the
                      literature.},
      keywords     = {J (WoSType)},
      cin          = {IEK-8},
      ddc          = {550},
      cid          = {I:(DE-Juel1)IEK-8-20101013},
      pnm          = {Atmosphäre und Klima},
      pid          = {G:(DE-Juel1)FUEK406},
      shelfmark    = {Meteorology $\&$ Atmospheric Sciences},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000279391100004},
      doi          = {10.5194/acp-10-5343-2010},
      url          = {https://juser.fz-juelich.de/record/12234},
}