Abstract
The possibility of using neutron activation analysis to link up a secondary to a primary mono-elemental solution was investigated. A procedure was developed for the determination of the ratio between the mass fractions of two solutions. The use of a monitor element was essential to limit the effect of the non-uniformity of the neutron flux during irradiation. The proposed procedure was tested in the case of two molybdenum solutions having the same mass fraction. Although the experiment did not reach the goal, possible ways are suggested to reach the target expanded uncertainty of 0.1 %.
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Acknowledgments
Financial support by the European Metrology Research Programme (EMRP) is gratefully acknowledged (EMRP-SIB09 “Purity standards for challenging elements”) [14]. The EMRP is jointly funded by the EMRP participating countries within the European Association of National Metrology Institutes (EURAMET). The authors are grateful to the referee for providing constructive comments and help in improving the contents of this paper.
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An erratum to this article is available at http://dx.doi.org/10.1007/s10967-017-5307-x.
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D’Agostino, G., Bergamaschi, L., Di Luzio, M. et al. The linkup of mono-elemental solutions to the SI using INAA: a measurement procedure and the achievable uncertainty. J Radioanal Nucl Chem 309, 777–786 (2016). https://doi.org/10.1007/s10967-015-4676-2
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DOI: https://doi.org/10.1007/s10967-015-4676-2