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@ARTICLE{Klee:155458,
      author       = {Klee, Sonja and Derpmann, Valerie and Wißdorf, Walter and
                      Klopotowski, Sebastian and Kersten, Hendrik and Brockmann,
                      Klaus J. and Benter, Thorsten and Albrecht, Sascha and
                      Bruins, Andries P. and Dousty, Faezeh and Kauppila, Tiina J.
                      and Kostiainen, Risto and O’Brien, Rob and Robb, Damon B.
                      and Syage, Jack A.},
      title        = {{A}re {C}lusters {I}mportant in {U}nderstanding the
                      {M}echanisms in {A}tmospheric {P}ressure {I}onization?
                      {P}art 1: {R}eagent {I}on {G}eneration and {C}hemical
                      {C}ontrol of {I}on {P}opulations},
      journal      = {Journal of the American Society for Mass Spectrometry},
      volume       = {25},
      number       = {8},
      issn         = {1879-1123},
      address      = {New York [u.a.]},
      publisher    = {Springer},
      reportid     = {FZJ-2014-04624},
      pages        = {1310 - 1321},
      year         = {2014},
      abstract     = {It is well documented since the early days of the
                      development of atmospheric pressure ionization methods,
                      which operate in the gas phase, that cluster ions are
                      ubiquitous. This holds true for atmospheric pressure
                      chemical ionization, as well as for more recent techniques,
                      such as atmospheric pressure photoionization, direct
                      analysis in real time, and many more. In fact, it is well
                      established that cluster ions are the primary carriers of
                      the net charge generated. Nevertheless, cluster ion
                      chemistry has only been sporadically included in the
                      numerous proposed ionization mechanisms leading to charged
                      target analytes, which are often protonated molecules. This
                      paper series, consisting of two parts, attempts to highlight
                      the role of cluster ion chemistry with regard to the
                      generation of analyte ions. In addition, the impact of the
                      changing reaction matrix and the non-thermal collisions of
                      ions en route from the atmospheric pressure ion source to
                      the high vacuum analyzer region are discussed. This work
                      addresses such issues as extent of protonation versus
                      deuteration, the extent of analyte fragmentation, as well as
                      highly variable ionization efficiencies, among others. In
                      Part 1, the nature of the reagent ion generation is
                      examined, as well as the extent of thermodynamic versus
                      kinetic control of the resulting ion population entering the
                      analyzer region.},
      cin          = {IEK-7 / IEK-8},
      ddc          = {530},
      cid          = {I:(DE-Juel1)IEK-7-20101013 / I:(DE-Juel1)IEK-8-20101013},
      pnm          = {234 - Composition and Dynamics of the Upper Troposphere and
                      Stratosphere (POF2-234)},
      pid          = {G:(DE-HGF)POF2-234},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000339807400002},
      doi          = {10.1007/s13361-014-0891-2},
      url          = {https://juser.fz-juelich.de/record/155458},
}