Experimental design and z-score results are useful tools for optimizing Instrumental Neutron Activation Analysis procedures
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2019
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INTERNATIONAL CONFERENCE ON MODERN TRENDS IN ACTIVATION ANALYSIS, 15th
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In this study the optimization of procedures of an Instrumental Neutron Activation Analysis (INAA) method were
carried out for the determination of the elements bromine, chlorine, magnesium, manganese, potassium, sodium and vanadium
in biological matrix materials using irradiations up to 60 s at a pneumatic station. 2k experimental designs were applied for
assessment of the individual influence of selected variables of the analytical procedure in the mass fraction results. The
chosen experimental designs were the 23 and the 24, depending on radionuclide half-lives. Different certified reference
materials and multi-element comparators were analyzed, considering the following variables: irradiation time, sample decay
time, sample distance to detector and counting time. Gamma ray spectrometer, comparator concentration, and sample mass
were maintained constant in this study. By means of statistical analysis experimental considerations, optimized experimental
conditions for the analytical methodwere determined and will be adopted for the validation procedure of INAA methods at
the Research Reactor Center of the Nuclear and Energy Research Institute (IPEN – CNEN/SP). Optimized irradiation and
measurement conditions were established based on experimental design resultsusing the obtained z-scores for the various
elements and experimental conditions.
Como referenciar
SANTOS, U.P.M.; LOURENÇO, F.R.; MOREIRA, E.G. Experimental design and z-score results are useful tools for optimizing Instrumental Neutron Activation Analysis procedures. In: ACHARYA, R. (ed.); SWAIN, K.K. (ed.); SATHYAPRIYA, R.S. (ed.); REDDY, A.V.R. (ed.); PUJARI, P.K. (ed.). In: INTERNATIONAL CONFERENCE ON MODERN TRENDS IN ACTIVATION ANALYSIS, 15th, November 17-22, 2019, Mumbai, India. Abstract... Mumbai, India: Bhabha Atomic Research Centre, 2019. p. 133-133. Disponível em: http://repositorio.ipen.br/handle/123456789/31025. Acesso em: 30 Dec 2025.
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.