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@ARTICLE{Klauth:51203,
      author       = {Klauth, P. and Bauer, R. and Ralfs, C. and Ustohal, P. and
                      Vanderborght, J. and Vereecken, H. and Klumpp, E.},
      title        = {{F}luorescence macrophotography as a tool to visualise and
                      quantify spatial distribution of deposited colloid tracers
                      in porous media},
      journal      = {Colloids and surfaces / A},
      volume       = {306},
      issn         = {0927-7757},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier Science},
      reportid     = {PreJuSER-51203},
      pages        = {118 - 125},
      year         = {2007},
      note         = {Record converted from VDB: 12.11.2012},
      abstract     = {Fluorescence macrophotography was used for the evaluation
                      of colloidal transport and deposition in silica sand and
                      sandy soil packed columns. With the fluorescence
                      macrophotography technique, the number of microspheres and
                      its macroscopic distribution on a column cross section is
                      derived from an image of the fluorescence intensity of the
                      surface. Column experiments with varying flow velocity and
                      input concentration of microspheres lead to conditions with
                      high deposition or high breakthrough of the colloids. In
                      comparison with established microscopic fluorescent
                      techniques the presented novel methodology was found to
                      deliver similar estimates of particle concentrations and
                      similar detection limits. Moreover, unlike with fluorescent
                      microscopic method, the fluorescent macrophotography
                      technique provides valuable information about the spatial
                      distribution of microspheres. The Sulforhodamine-B, a
                      frequently applied organic dye to label the microspheres,
                      limits the applicability of fluorescence macrophotography
                      technique due to self-quenching effects which occur at high
                      particle concentration. At high proximity of the fluorescent
                      microspheres self-quenching effects led to underestimation
                      of microsphere concentration as well as incorrect depth
                      profiles. Very recent developed microspheres, labelled with
                      rare-earth-ion-chelate-complexes overcome this limitation.
                      (C) 2007 Elsevier B.V.. All rights reserved.},
      keywords     = {J (WoSType)},
      cin          = {ICG-1 / ICG-4 / JARA-ENERGY / JARA-SIM},
      ddc          = {540},
      cid          = {I:(DE-Juel1)VDB790 / I:(DE-Juel1)VDB793 /
                      $I:(DE-82)080011_20140620$ / I:(DE-Juel1)VDB1045},
      pnm          = {Atmosphäre und Klima},
      pid          = {G:(DE-Juel1)FUEK406},
      shelfmark    = {Chemistry, Physical},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000249231200016},
      doi          = {10.1016/j.colsurfa.2007.03.058},
      url          = {https://juser.fz-juelich.de/record/51203},
}