N. A. Titchenko, B. V. Egorova, S. N. Kalmykov, “Features of TiIV and ScIII behavior in oxalic acid solutions affecting the 44Ti/44Sc generating system based on anion exchange resins”, Mendeleev Commun., 2025, Volume 35, Issue 4,Pages 396

Communications

Features of Ti^IV and Sc^III behavior in oxalic acid solutions affecting the ⁴⁴Ti/⁴⁴Sc generating system based on anion exchange resins

N. A. Titchenko^ab, B. V. Egorova^a, S. N. Kalmykov^ac

^a Department of Chemistry, M. V. Lomonosov Moscow State University, 119991 Moscow, Russian Federation
^b Institute for Nuclear Research, Russian Academy of Sciences, 117312 Moscow, Russian Federation
^c A. N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, 119071 Moscow, Russian Federation

Abstract: Generator columns based on Dowex 1X8 anion exchange resin and TEVA extraction chromatography resin with 0.005 M H₂Ox + 0.065 M HCl eluent were compared. The behavior of ⁴⁴Ti and ⁴⁴Sc on the resins is explained by the corresponding fractions of anionic species of Ti^IV and Sc^III in solutions of oxalic and hydrochloric acids mixtures. A laboratory generator based on TEVA with 0.005 M H₂Ox + 0.065 M HCl eluent allowed to obtain over 96% ⁴⁴Sc in 3 ml of eluent with a ⁴⁴Ti breakthrough of no more than 5 × 10⁻⁵%.

Keywords: ⁴⁴Ti, ⁴⁴Sc, radionuclide generator, TEVA, Dowex 1X8, anion exchange resin, speciation in aqueous solutions.

Received: 16.10.2024
Accepted: 15.01.2025

Language: English

DOI: 10.71267/mencom.7656

	*Supplementary materials:*
		Supplementary_data_1.pdf	2.3 Mb