RADIOCHEMICAL SEPARATION OF 161TB FROM GD/TB MATRIX USING LN RESIN COLUMN
ABSTRACT: Terbium-161 (161Tb)
is a potential radiolanthanide due to its favorable properties for treatment
small size of cancer. Preliminary study on radiochemical separation of 161Tb
from Gd/Tb matrix using Ln resin column based on extraction chromatography
method has been carried out. 161Tb radionuclide was produced by irradiation of
natural Gd2O3 target through neutron thermal bombardment at G.A. Siwabessy
Multipurpose Reactor. Fractions eluted from the column containing Gd/Tb matrix
of irradiated natural Gd2O3 target were identified and quantified using a
γ-rays spectrometer with HP-Ge detector coupled to a multichannel analyzer. The
results show that the optimum condition on 161Tb separation from irradiated
Gd2O3 target with radionuclide purity 99.27 ± 0.30% was obtained using HNO3
solution with concentration of 0.8 and 3 N to separate gadolinium and terbium
isotope, respectively. The yield of 161Tb obtained from the separation was
61.21 ± 2.05% and Gd recovered was 97.15 ± 2.23%. Based on this experiment,
161Tb has been separated from irradiated natural gadolinium oxide target with
high radionuclide purity.
Author: Azmairit Aziz, Widya
Tania Artha
Journal Code: jpkimiagg160100
