Abstract
An 99mTc generator with MnO2 as adsorbent of 99Mo was investigated. Through batch experiments the retention of 99Mo onto MnO2was studied as a function of the shaking time and the pH value of the 99Mo solution. It was found that 99Mo showed a retention of 100% onto MnO2 at the pH range from 3 to 11, and the equilibrium distribution was reached in less than 10 minutes. In column experiments the retention of 99Mo onto MnO2 was also high: 99.72%. In this case, the pH of the utilized 99Mo solution was 5. The 99mTc could be eluted from the MnO2-99Mo column by using either distilled water with a pH of 5 or an aqueous solution of 0.9% NaCl. With the saline solution, the 99mTc elution yields were higher than 80%, and only one aliquot of 5 ml was needed to get these yields. The best results were obtained when the column was packed with 1 g of MnO2. The water and the saline solution were passed through the column at a rate of 1.25 ml/min.
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Serrano Gómez, J., Granados Correa, F. 99mTc generator with hydrated MnO2 as adsorbent of 99Mo. Journal of Radioanalytical and Nuclear Chemistry 254, 625–628 (2002). https://doi.org/10.1023/A:1021623012496
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DOI: https://doi.org/10.1023/A:1021623012496