NISTI, M.B.SAUEIA, C.H.R.CASTILHO, B.MAZZILLI, B.P.2019-07-252019-07-252019NISTI, M.B.; SAUEIA, C.H.R.; CASTILHO, B.; MAZZILLI, B.P. Assessment of Sr-90 in water samples: precision and accuracy. <b>Brazilian Journal of Radiation Sciences</b>, v. 7, n. 2A, p. 1-12, 2019. DOI: <a href="https://dx.doi.org/10.15392/bjrs.v7i2A.559">10.15392/bjrs.v7i2A.559</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/29955.2319-0612http://repositorio.ipen.br/handle/123456789/29955The aims of this study are to evaluate the precision and accuracy of three methodologies for the determination of 90Sr in water samples: Cerenkov, LSC direct method and with radiochemical separation. The performance of the methodologies was evaluated by using two scintillation counters (Quantulus and Hidex). The parameters Minimum Detectable Activity (MDA) and Figure Of Merit (FOM) were determined for each method, the precision and accuracy were checked using 90Sr standard solutions.1-12openAccessstrontium 90waterwater pollutionphysical radiation effectsaccuracyArtigo de periódico2A710.15392/bjrs.v7i2A.5590000-0001-7174-9703https://orcid.org/0000-0001-7174-9703Sem Percentil