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@ARTICLE{Kasteel:10169,
      author       = {Kasteel, R. and Mboh, C.M. and Unold, M. and Groeneweg, J.
                      and Vanderborght, J. and Vereecken, H.},
      title        = {{T}ransformation and sorption of the veterinary antibiotic
                      sulfadiazine in two soils: {A} short-term batch study},
      journal      = {Environmental Science $\&$ Technology},
      volume       = {44},
      issn         = {0013-936X},
      address      = {Columbus, Ohio},
      publisher    = {American Chemical Society},
      reportid     = {PreJuSER-10169},
      pages        = {4651 - 4657},
      year         = {2010},
      note         = {C.M.M. and M.U. acknowledge the German Research Foundation
                      (DFG) for financial support (FOR566). We thank Stephan
                      Koppchen for the HPLC measurements and Bayer HealthCare
                      (Wuppertal, Germany) for providing the
                      <SUP>14</SUP>C-labeled sulfadiazine.},
      abstract     = {The worldwide use of veterinary antibiotics poses a
                      continuous threat to the environment. There is, however, a
                      lack of mechanistic studies on sorption and transformation
                      processes for environmental assessment in soils. Two-week
                      batch sorption experiments were performed with the
                      antibiotic sulfadiazine (SDZ) in the plow layer and the
                      subsoil of a loamy sand and a silty loam. The sorption and
                      transformation parameters of SDZ and its main transformation
                      products N1-2-(4-hydroxypyrimidinyl) benzenesulfanilamide
                      (4-OH-SDZ) and 4-(2-iminopyrimidin-1(2H)-yl)aniline (An-SDZ)
                      were estimated using a global optimization algorithm. A
                      two-stage, one-rate sorption model combined with a
                      first-order transformation model adequately described the
                      batch data. Sorption of SDZ was nonlinear, time-dependent,
                      and affected by pH, with a higher sorption capacity for the
                      loamy sand. Transformation of SDZ into 4-OH-SDZ occurred
                      only in the liquid phase, with half-life values of 1 month
                      in the plow layers and 6 months in the subsoils. Under the
                      exclusion of light, An-SDZ was formed in substantial amounts
                      in the silty loam only, with liquid phase half-life values
                      of 2 to 3 weeks. Despite the rather large parameter
                      uncertainties, which may be reduced using additional
                      information obtained from sequential solid phase extraction,
                      the proposed method provides a framework to assess the fate
                      of antibiotics in soils.},
      keywords     = {Adsorption / Biodegradation, Environmental /
                      Biotransformation / Carbon Radioisotopes / Environmental
                      Remediation: methods / Kinetics / Models, Chemical / Soil:
                      analysis / Sulfadiazine: chemistry / Sulfadiazine: isolation
                      $\&$ purification / Sulfadiazine: metabolism / Time Factors
                      / Veterinary Drugs: chemistry / Veterinary Drugs: isolation
                      $\&$ purification / Veterinary Drugs: metabolism / Carbon
                      Radioisotopes (NLM Chemicals) / Soil (NLM Chemicals) /
                      Veterinary Drugs (NLM Chemicals) / Sulfadiazine (NLM
                      Chemicals) / J (WoSType)},
      cin          = {ICG-4 / JARA-ENERGY / JARA-HPC},
      ddc          = {050},
      cid          = {I:(DE-Juel1)VDB793 / $I:(DE-82)080011_20140620$ /
                      $I:(DE-82)080012_20140620$},
      pnm          = {Terrestrische Umwelt},
      pid          = {G:(DE-Juel1)FUEK407},
      shelfmark    = {Engineering, Environmental / Environmental Sciences},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:20465301},
      UT           = {WOS:000278617000045},
      doi          = {10.1021/es100141m},
      url          = {https://juser.fz-juelich.de/record/10169},
}