Nano zirconium hydroxide gel as a sorbent material for 99Mo/99mTc radioisotope generator

IF 1.5 3区化学 Q3 CHEMISTRY, ANALYTICAL

Journal of Radioanalytical and Nuclear Chemistry Pub Date : 2025-01-07 DOI:10.1007/s10967-024-09918-4

H. E. Ramadan, M. A. El-Amir, M. Mostafa

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引用次数: 0

Abstract

Sorption of Mo(VI) from aqueous solutions onto nano zirconium hydroxide gels was studied using ⁹⁹Mo radiotracer. The acid–base titration curves showed that the prepared nano Zr(OH)₄ gels, Gel #1 and Gel #2, were amphoteric materials with points of zero charge (PZC’s) at pH 2.8 and 3.3, respectively. The highest distribution coefficients of molybdate(VI)-⁹⁹Mo between both gels (Gel #1 and Gel #2) and Cl⁻ media were achieved at pH 2. The maximum sorption capacities of Gel #1 and Gel #2 were found to be 165.7 ± 7.5 and 195.4 ± 8.1 mg Mo/g, respectively. The prepared ⁹⁹Mo/^99mTc chromatographic column generator based on Gel #2 (achieving the higher Mo capacity) showed a good performance; the ^99mTc elution yield was 82.7 ± 2.0%, pH of the eluate ranged from 5 to 6.8, and ⁹⁹Mo breakthrough in the eluted ^99mTc was 0.005 ± 0.002% with a radiochemical purity of 97.3 ± 0.9% (as ^99mTcO₄⁻).

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来源期刊

Journal of Radioanalytical and Nuclear Chemistry 化学-分析化学

CiteScore

2.80

自引率

18.80%

发文量

504

审稿时长

2.2 months

期刊介绍： An international periodical publishing original papers, letters, review papers and short communications on nuclear chemistry. The subjects covered include: Nuclear chemistry, Radiochemistry, Radiation chemistry, Radiobiological chemistry, Environmental radiochemistry, Production and control of radioisotopes and labelled compounds, Nuclear power plant chemistry, Nuclear fuel chemistry, Radioanalytical chemistry, Radiation detection and measurement, Nuclear instrumentation and automation, etc.