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  • 1 Abteilung für Nuklearbiologie und Physikalisch Technische Abteilung, Gesellschaft für Strahlen- und Umweltforschung 8042 Neuherberg near Munich (FRG)
  • 2 Kernforschungsanlage Jülich Institut für Medizin 517 Jülich FRG
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In order to reduce analytical expenses by the re-use of typical ion-exchange resins and partition chromatographic column supports, frequently used in large scale routine analysis of biological samples in many radiochemical laboratories, the problem of their recovery was studied in column and batch operations. The difficulties encountered with respect to some elements are discussed in details.