ABRAO, A.LIMA, F.W.PIERONI, R.R.2015-11-062015-11-062015-11-062015-11-061958ABRAO, A.; LIMA, F.W.; PIERONI, R.R. Improved urinary excretion test for assay of vitamin B-12 tagged with cobalt-60. 11p. (IEA-PUB-6). Disponível em: http://repositorio.ipen.br/handle/123456789/24089.http://repositorio.ipen.br/handle/123456789/2408911openAccesscobalt 60quantitative chemical analysisradioassayscintillation countersseparation processestracer techniquesurinevitamin b-12Série Publicação IPEN