, Volume 60, Issue 5, pp 548–551 | Cite as

Separation of Carrier-Free 115mIn from Its Parent 115Cd Using the Synthesized TODGA-Impregnated Silica Gel

  • M. MandalEmail author
  • S. Dhara
  • S. Basu


A radiotracer technique has been used to achieve the carrier-free separation of 115mIn from its parent 115Cd in hydrochloric acid medium on a chromatographic column packed with TODGA-impregnated silica gel. At 8 M HCl, both cations are bound at the chelating site, which results in maximum adsorption. When the column is treated with 2 M HCl, the daughter complex gets desorbed and is eluted from the column, whereas the parent remains undisturbed. Pure silica gel does not adsorb radioactivity under these conditions. The radiochemical purity of daughter was checked by its half-life (4.49 h).


115Cd–115mIn separation TODGA-impregnated silica gel radiochemical separation 


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Copyright information

© Pleiades Publishing, Inc. 2018

Authors and Affiliations

  1. 1.Department of ChemistryMahadevananda MahavidyalayaKolkataIndia
  2. 2.Department of ChemistrySantipur CollegeSantipur, NadiaIndia
  3. 3.Department of Chemistrythe University of Burdwan, GolapbagBurdwanIndia

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