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@ARTICLE{LopezHilfiker:202063,
      author       = {Lopez-Hilfiker, F. D. and Mohr, C. and Ehn, M. and Rubach,
                      F. and Kleist, E. and Wildt, J. and Mentel, Th. F. and Lutz,
                      Anna and Hallquist, M. and Worsnop, D. and Thornton, J. A.},
      title        = {{A} novel method for online analysis of gas and particle
                      composition: description and evaluation of a {F}ilter
                      {I}nlet for {G}ases and {AERO}sols ({FIGAERO})},
      journal      = {Atmospheric measurement techniques},
      volume       = {7},
      number       = {4},
      issn         = {1867-8548},
      address      = {Katlenburg-Lindau},
      publisher    = {Copernicus},
      reportid     = {FZJ-2015-04352},
      pages        = {983 - 1001},
      year         = {2014},
      abstract     = {We describe a novel inlet that allows measurement of both
                      gas and particle molecular composition when coupled to mass
                      spectrometric, chromatographic, or optical sensors: the
                      Filter Inlet for Gases and AEROsols (FIGAERO). The design
                      goals for the FIGAERO are to allow unperturbed observation
                      of ambient air while simultaneously analyzing gases and
                      collecting particulate matter on a Teflon® (hereafter
                      Teflon) filter via an entirely separate sampling port. The
                      filter is analyzed periodically by the same sensor on hourly
                      or faster timescales using temperature-programmed thermal
                      desorption. We assess the performance of the FIGAERO by
                      coupling it to a high-resolution time-of-flight
                      chemical-ionization mass spectrometer (HRToF-CIMS) in
                      laboratory chamber studies of α-pinene oxidation and field
                      measurements at a boreal forest location. Low instrument
                      backgrounds give detection limits of ppt or lower for
                      compounds in the gas-phase and in the picogram m−3 range
                      for particle phase compounds. The FIGAERO-HRToF-CIMS
                      provides molecular information about both gases and particle
                      composition on the 1 Hz and hourly timescales, respectively
                      for hundreds of compounds. The FIGAERO thermal desorptions
                      are highly reproducible (better than $10\%),$ allowing a
                      calibrated assessment of the effective volatility of
                      desorbing compounds and the role of thermal decomposition
                      during the desorption process. We show that the often
                      multi-modal desorption thermograms arising from secondary
                      organic aerosol (SOA) provide additional insights into
                      molecular composition and/or particle morphology, and
                      exhibit changes with changes in SOA formation or aging
                      pathways.},
      cin          = {IEK-8 / IBG-2},
      ddc          = {550},
      cid          = {I:(DE-Juel1)IEK-8-20101013 / I:(DE-Juel1)IBG-2-20101118},
      pnm          = {233 - Trace gas and aerosol processes in the troposphere
                      (POF2-233)},
      pid          = {G:(DE-HGF)POF2-233},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000335373600008},
      doi          = {10.5194/amt-7-983-2014},
      url          = {https://juser.fz-juelich.de/record/202063},
}