@phdthesis{Hahn2012,
  author    = {Hahn, Simone},
  title     = {Extration von Hexachloroplatinat(IV) mit phoshorylierten Merrifield-Harzen aus salzsauren L{\"o}sungen},
  address   = {Potsdam},
  pages     = {X, 127, XXX S.},
  year      = {2012},
  language  = {de}
}
@article{HahnHoldt2012,
  author    = {Hahn, Simone and Holdt, Hans-J{\"u}rgen},
  title     = {Extraction of hexachloroplatinate from hydrochloric acid solutions with phosphorylated hexane-1,6-diyl polymers},
  series = {Reactive \& functional polymers},
  volume    = {72},
  journal   = {Reactive \& functional polymers},
  number    = {11},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {1381-5148},
  doi       = {10.1016/j.reactfunctpolym.2012.08.004},
  pages     = {878 -- 888},
  year      = {2012},
  abstract  = {A series of diols (diethylene glycol, triethylene glycol, butane-1,4-diol and hexane-1,6-diol) were immobilized onto Merrifield resin and subsequently phosphorylated with dialkyl chlorophosphate (alkyl = Me, Et, Bu). The resins bearing hexane-1,6-diyl groups exhibited very good extraction abilities in regard to precious metal chloro complexes like platinum(IV), palladium(II) and rhodium(III). In batch experiments, more than 98\% of Pt(IV) is extracted even when the metal and the hydrochloric acid concentration is enhanced significantly. Elution can be achieved with a solution of 0.5 mol L-1 thiourea in 0.1 mol L-1 hydrochloric acid. In the presence of other noble metals, platinum(IV) is preferentially bound. The extraction yield decreases in slightly acidic solution in the following order: Pt(IV)approximate to Pd(II)>Rh(III) and changes with increasing hydrochloric acid concentration to Pt(IV)>Pd(II)>> Rh(III). At different ratios of metal and acid, the temperature has nearly no influence on the platinum extraction. On slightly acidic media, the extraction of rhodium decreases by 30\% when the temperature is increased from 10 degrees C to 40 degrees C. When the acid and metal concentration is enhanced, the palladium extraction decreases by 7-9\%, depending on the resin.},
  language  = {en}
}
@article{HahnTraegerHoldt2015,
  author    = {Hahn, Simone and Tr{\"a}ger, Juliane and Holdt, Hans-J{\"u}rgen},
  title     = {Solid-Phase extraction of Pt(IV) with Dialkyl-(hexane-1,6-diyl) phosphate modified merrifield resins from aqueous chloride media in column operations},
  series = {Separation and purification technology},
  volume    = {50},
  journal   = {Separation and purification technology},
  number    = {2},
  publisher = {Taylor \& Francis Group},
  address   = {Philadelphia},
  issn      = {0149-6395},
  doi       = {10.1080/01496395.2014.968264},
  pages     = {191 -- 206},
  year      = {2015},
  abstract  = {A series of three dialkyl phosphate resins with a Merrifield resin support was used to extract platinum from acidic media. In column operations total capacities of 85-130 mg/g were gained. The presence of palladium and rhodium results in the order: Pt(IV) > Pd(II) >> Rh(III). From a leach liquor gained from spent automotive catalysts metals forming anionic chloro complexes are co-extracted only to a small extent. However, in order to separate and enrich platinum a selective back-extraction can be done with a sodium thiocyanate solution. A second elution step with acidic thiourea leads to a mixed solution of palladium and rhodium.},
  language  = {en}
}
@article{HahnKellingSchildeetal.2008,
  author    = {Hahn, Simone and Kelling, Alexandra and Schilde, Uwe and Holdt, Hans-J{\"u}rgen},
  title     = {Crystal structure of bis(2-ethylthiomethylpyridine)platinum(II) hexachloroplatinate, [Pt(C8H11NS)2][PtCl6]},
  issn      = {1433-7266},
  doi       = {10.1524/ncrs.2008.0216},
  year      = {2008},
  abstract  = {C16H22Cl6N2Pt2S2, orthorhombic, Pbca (no. 61), a = 15.5660(8) angstrom, b = 17.4892(9) angstrom, c = 18.161 (1) angstrom, V = 4944. 1 angstrom(3), Z = 8, R-gt(F) = 0.030, wR(ref)(F-2) = 0.055, T = 210 K.},
  language  = {en}
}