Determination of the total retention capacity of 99Mo in anionic extracting agent
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Brazilian Journal of Radiation Sciences
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The Nuclear Metrology Laboratory (LMN) at IPEN-CNEN/SP is developing a research project aimed at studying analytical techniques for determining radioactive impurities emitting alpha and beta particles. This project started with the determination of impurities present in ^99Mo, which is used to obtain the radiopharmaceutical ^99mTc by means of radiochemical separation in the ^99Mo/^99mTc generator. The study of the anionic extracting agent Strata X-A, widely used in quality analysis, was carried out by means of a breakthrough curve in order to validate its total exchange capacity for Mo. The breaking point was determined at (2.75 +/- 0.14) mL, showing that just one 0.5 g Strata X-A cartridge is sufficient to retain 1.0 mL of a (Na2MoO4 + ^99Mo) solution at a concentration of 2.42 g L^-1.
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YAMAZAKI, I. M.; MOREIRA, D. S.; DIAS, M. S.; SENEDA, J. A.; KOSKINAS, M. F. Determination of the total retention capacity of 99Mo in anionic extracting agent. Brazilian Journal of Radiation Sciences, v. 12, n. 4A, p. 1-10, 2024. DOI: 10.15392/2319-0612.2024.2657. Disponível em: https://repositorio.ipen.br/handle/123456789/49916. Acesso em: 10 Jun 2026.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.