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@ARTICLE{Goerigk:808414,
      author       = {Goerigk, Guenter and Lages, Sebastian and Huber, Klaus},
      title        = {{S}ystematic {L}imitations in {C}oncentration {A}nalysis
                      via {A}nomalous {S}mall-{A}ngle {X}-ray {S}cattering in the
                      {S}mall {S}tructure {L}imit},
      journal      = {Polymers},
      volume       = {8},
      number       = {3},
      issn         = {2073-4360},
      address      = {Basel},
      publisher    = {MDPI},
      reportid     = {FZJ-2016-02237},
      pages        = {85 -},
      year         = {2016},
      abstract     = {Anomalous small angle scattering measurements have been
                      applied to diluted solutions of anionic polyacrylates
                      decorated by specifically-interacting Pb2+ cations,
                      revealing partial collapse of the polyacrylate into
                      pearl-like subdomains with a size on the order of a few
                      nanometers. From the pure-resonant scattering contribution
                      of the Pb2+ cations, and from subsequent analysis of the
                      resonant-invariant, the amount of Pb2+ cations condensed
                      onto the polyanions with respect to the total amount of Pb2+
                      cations in the solvent was estimated. In order to scrutinize
                      systematic limitations in the determination of the chemical
                      concentrations of resonant scattering counterions in the
                      collapsed phase, Monte Carlo simulations have been
                      performed. The simulations are based on structural
                      confinements at variable size in the range of few
                      nanometers, which represent the collapsed subdomains in the
                      polyanions. These confinements were gradually filled to a
                      high degree of the volume fraction with resonant scattering
                      counterions giving access to a resonant-invariant at a
                      variable degree of filling. The simulations revealed in the
                      limit of small structures a significant underestimation of
                      the true degree of filling of the collapsed subdomains when
                      determining chemical concentrations of Pb2+ cations from the
                      resonant invariant},
      cin          = {JCNS (München) ; Jülich Centre for Neutron Science JCNS
                      (München) ; JCNS-FRM-II / Neutronenstreuung ; JCNS-1},
      ddc          = {540},
      cid          = {I:(DE-Juel1)JCNS-FRM-II-20110218 /
                      I:(DE-Juel1)JCNS-1-20110106},
      pnm          = {6G15 - FRM II / MLZ (POF3-6G15) / 6G4 - Jülich Centre for
                      Neutron Research (JCNS) (POF3-623)},
      pid          = {G:(DE-HGF)POF3-6G15 / G:(DE-HGF)POF3-6G4},
      experiment   = {EXP:(DE-MLZ)KWS2-20140101},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000373711700033},
      doi          = {10.3390/polym8030085},
      url          = {https://juser.fz-juelich.de/record/808414},
}