Resumo

MONROY-GUZMAN, F.  e  JAIME SALINAS, E.. Separation of Micro-Macrocomponent Systems: ¹⁴⁹Pm-Nd, ¹⁶¹Tb-Gd, ¹⁶⁶Ho-Dy and ¹⁷⁷Lu-Yb by Extraction Chromatography. J. Mex. Chem. Soc [online]. 2015, vol.59, n.2, pp.143-150. ISSN 1870-249X.

¹⁴⁹Pm, ¹⁶¹Tb, ¹⁶⁶Ho, and ¹⁷⁷Lu have advisable nuclear properties to be used in radiotherapy. They can be produced by neutron irradiation of a lanthanide target followed by β- decay and a posterior radiochemical separation of micro-amounts of daughter radionuclide from macro-amounts of the parent target. In order to accomplish the radiochemical separation of micro-macro systems: Nd/¹⁴⁹Pm, Gd/¹⁶¹Tb, Dy/¹⁶⁶Ho and Yb/¹⁷⁷Lu, this work proposes the use of an extraction chromatographic with Ln SPS resin. Distribution coefficients and separation factors were determined and established the separation conditions of these micro-macro systems.

Palavras-chave : separation; extraction chromatography; ¹⁴⁹Pm; ¹⁶¹Tb; ¹⁶⁶Ho; ¹⁷⁷Lu.

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