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@ARTICLE{Mller:23105,
      author       = {Müller, L. and Reinnig, M.C. and Naumann, K.H. and
                      Saathoff, H. and Mentel, T.F. and Donahue, N.M. and
                      Hoffmann, T.},
      title        = {{F}ormation of 3-methyl-1,2,3-butanetricarboxylic acid via
                      gas phase oxidation of pinonic acid - a mass spectrometric
                      study of {SOA} aging},
      journal      = {Atmospheric chemistry and physics},
      volume       = {12},
      issn         = {1680-7316},
      address      = {Katlenburg-Lindau},
      publisher    = {EGU},
      reportid     = {PreJuSER-23105},
      pages        = {1483 - 1496},
      year         = {2012},
      note         = {We thank the AIDA team at KIT for their effective support
                      during the measurement campaign and the EUROCHAMP-2 project
                      within the EC 7th framework programme for financial
                      support.},
      abstract     = {This paper presents the results of mass spectrometric
                      investigations of the OH-initiated oxidative aging of
                      alpha-pinene SOA under simulated tropospheric conditions at
                      the large aerosol chamber facility AIDA, Karlsruhe Institute
                      of Technology. In particular, the OH-initiated oxidation of
                      pure pinic and pinonic acid, two well-known oxidation
                      products of alpha-pinene, was investigated. Two
                      complementary analytical techniques were used, on-line
                      atmospheric pressure chemical ionization/mass spectrometry
                      (APCI/MS) and filter sampling followed by liquid
                      chromatography/mass spectrometry (LC/ESI-MS). The results
                      show that 3-methyl-1,2,3-butanetricarboxylic acid (MBTCA), a
                      very low volatile alpha-pinene SOA product and a tracer
                      compound for terpene SOA, is formed from the oxidation of
                      pinonic acid and that this oxidation takes place in the gas
                      phase. This finding is confirmed by temperature-dependent
                      aging experiments on whole SOA formed from alpha-pinene, in
                      which the yield of MBTCA scales with the pinonic acid
                      fraction in the gas phase. Based on the results, several
                      feasible gas-phase radical mechanisms are discussed to
                      explain the formation of MBTCA from OH-initiated pinonic
                      acid oxidation.},
      keywords     = {J (WoSType)},
      cin          = {IEK-8},
      ddc          = {550},
      cid          = {I:(DE-Juel1)IEK-8-20101013},
      pnm          = {Atmosphäre und Klima},
      pid          = {G:(DE-Juel1)FUEK491},
      shelfmark    = {Meteorology $\&$ Atmospheric Sciences},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000300656500016},
      doi          = {10.5194/acp-12-1483-2012},
      url          = {https://juser.fz-juelich.de/record/23105},
}