137Cs/137mBa radioisotope generator based on 6-tungstocerate(IV) column matrix |
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| Authors: | M. A. El-Absy M. Mostafa M. A. El-Amir H. El-Said A. A. Abdel Fattah H. M. Aly |
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| Affiliation: | (1) Radioactive Isotopes and Generators Department, Hot Laboratories Center, Atomic Energy Authority, P.O. Code 13759, Cairo, Egypt;(2) Radioactive Isotopes and Generators Department, Hot Laboratories Center, Atomic Energy Authority, P.O. Code 13759, Cairo, Egypt;(3) Radioactive Isotopes and Generators Department, Hot Laboratories Center, Atomic Energy Authority, P.O. Code 13759, Cairo, Egypt;(4) Radioactive Isotopes and Generators Department, Hot Laboratories Center, Atomic Energy Authority, P.O. Code 13759, Cairo, Egypt;(5) Chemistry Department, Faculty of Science, Zagazig University, Benha Branch, Benha, Egypt;(6) Chemistry Department, Faculty of Science, Zagazig University, Benha Branch, Benha, Egypt |
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| Abstract: | Summary Barium-137m radioisotope generator of the chromatographic column elution mode based on loading 1.5 g 6-tungstocerate(IV) gel matrix with ~54 kBq of fission-produced 137Cs is described. The elution performance of the generated 137mBa radionuclide was investigated as a function of chemical composition of the eluent, flow rate, elution frequency, and age of the generator system. At comparable conditions, 137mBa eluates with 0.9% NaCl-0.1M HCl eluent had higher elution yields and radionuclidic purity than with 0.1M NH4Cl-0.1M HCl eluent. The generator has been repeatedly eluted for 311 days by passing 4810 ml of the saline eluent (10 ml × 481 elution operations) at a flow rate of 3.0 ml/min. Barium-137m eluates of high and reproducible elution yields, chemical and radionuclidic purities of (≥ 99.99%) were obtained. |
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