Utilization of high specific activity 99Mo for assessing the active manganese oxide as a potential material for 99Mo/99mTc generator

Abstract

Abstract The hydrothermal preparation of active MnO2 via KMnO4 and MnSO4.H2O as inorganic forerunners is demonstrated, and it is evaluated as an adsorbent for the 99Mo produced by 235U fission. The structure and morphology of MnO2 were distinguished using various methods such as FTIR spectrum, FESEM, EDX, XRD, TGA. The 99Mo adsorption conduct on active manganese oxide was investigated, and the Mo uptake capacity was determined using static and dynamic techniques, and it was found to be 22.8 ± 1 and 6.72 ± 0.3 mg/g MnO2, respectively. This sorbent material was used in preliminary studies to prepare a 99Mo/99mTc generator. 99mTc eluted from the prepared generator was estimated to be 78–82 % with a low 99Mo breakthrough (0.002 %) and acceptable radiochemical, radionuclidic, and chemical purities.