Data/hora: 09/06/2024 13:37:57

Provedor de dados: 	52	
País: 	Brazil	
Título: 	Study of gels of molybdenum with cerium in the preparation of generators of 99Mo - 99mTc	
Autores: 	Moraes,Vanessa; Marczewski,Bárbara; Dias,Carla Roberta; Osso Junior,João Alberto.	
Data: 	2005-10-01	
Ano: 	2005	
Palavras-chave: 	Radioisotopes; Technetium-99m; Molybdenum-99; Gel generator.	
Resumo: 	99mTc has ideal nuclear properties for organ imaging in nuclear medicine, and it is obtained from the 99Mo-99mTc generator. Four different types of generators are available: chromatographic that uses 99Mo from fission of uranium; MEK solvent extraction; Tc2O7 sublimation; gel chromatographic. This work presents the preparation of gel generators of molybdenum with cerium and characterization of the gels: mass ratio between molybdenum and cerium, structure, size of particles and elution percentage of 99mTc after irradiating the gels. Eight gels were prepared at the same temperature of 50 ºC with concentrations of NaOH of 2 and 4 mol/L, mass ratio of 0.31 and 0.38 and final pH of 3.5 and 4.5. The analysis of the results proved that these gels are not adequate for preparation of the generators of 99Mo-99mTc, since the elution percentages are low, when compared with the gel of molybdenum with zirconium.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132005000700007	
Editor: 	Instituto de Tecnologia do Paraná - Tecpar	
Relação: 	10.1590/S1516-89132005000700007	
Formato: 	text/html	
Fonte: 	Brazilian Archives of Biology and Technology  v.48 n.spe2 2005	
Fonte: 	info:eu-repo/semantics/openAccess