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Five years activity in determining trace elements for the certification of standard reference materials by neutron activation analysis

Fünf Jahre Tätigkeit zur Bestimmung von Spurenelementen zwecks Sicherung von Standardproben durch Neutronenaktivierung

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Summary

A review of the experiences developed in the last five years of analytical work concerning the determination of trace element concentrations in reference materials by neutron activation analysis has been reported and discussed. Several elements such as Co, Sc, Mn, V, Fe, La, Sb, Zn, Th, have been determined by instrumental neutron activation analysis, while elements such as Hg, Se, As, Cu, Cd, I, required a selective radiochemical procedure. The results obtained are compared with the final certified values. For each matrix and/or group of matrices analytical problems and their solutions are illustrated.

Zusammenfassung

Eine Übersicht über die Erfahrungen der letzten 5 Jahre bei der analytischen Bestimmung von Spurenelementen mittels Neutronenaktivierung wurde gegeben und diskutiert. Einzelne Elemente wie Co, Sc, Mn, V, Fe, La, Sb, Zn und Th wurden mit Hilfe instrumenteller Neutronenaktivierungsanalyse bestimmt; andere Elemente, wie Hg, Se, As, Cu, Cd und J, erfordern ein selektives radiochemisches Verfahren. Die erhaltenen Ergebnisse wurden mit sichergestellten Werten verglichen. Für jede Matrix bzw. Matrixgruppe wurden die analytischen Probleme und deren Lösung angegeben.

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Delfanti, R., Di Casa, M., Gallorini, M. et al. Five years activity in determining trace elements for the certification of standard reference materials by neutron activation analysis. Mikrochim Acta 82, 239–250 (1984). https://doi.org/10.1007/BF01202916

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  • DOI: https://doi.org/10.1007/BF01202916

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