Abstract
The 14 MeV neutron activation analysis method was applied for the rapid and non-destructive determination of the molar ratios of iron(III) oxide and zinc oxide in zinc ferrites. Iron was detected as56Mn produced from56Fe by the (n, p) reaction, and zinc as the sum of the coincidence counts of the annihilation radiations of the positrons emitted from63Zn and64Cu produced from64Zn by the (n, 2n) and (n, p) reactions respectively. The ratios of the counts of56Mn and the sum of the coincidence counts were not linearly related to the molar ratios of iron(III) oxide and zinc oxide in zinc ferrites. However, by corrections of the mutual contributions to the counts, linear relations were obtained between the ratios of the counts and the molar ratios when the corrected sum of the coincidence counts was used as an internal standard. The experimental and theoretical slopes of the analytical lines agreed within a difference of approximately 10%. The deviations between the results of the activation analysis and those of the chemical analysis were less than 5% of the chemical results.
Similar content being viewed by others
References
M. Chiba, J. Radioanal. Chem., 2 (1969) 415.
C. M. Lederer, J. M. Hollander, I. Perlman, Table of Isotopes, 6th ed., J. Wiley, New York, 1968.
J. R. Stehn, M. D. Goldberg, B. A. Magurno, R. Wiener-Chasman (Ed.), Neutron Cross-Sections, USAEC BNL-352, 2nd ed., Suppl. 2, Vol. 1, 1964.
M. D. Goldberg; S. F. Mughabghab, B. A. Magurno, V. M. May, (Ed.), Neutron Cross-Sections, USAEC BNL-352, 2nd ed., Suppl. 2, Vol. IIA, 1966.
P. Répás, Acta Chim. Acad. Sci. Hung., 28 (1961) 243.
M. Chiba, Y. Inoue, J. Radioanal. Chem., 20 (1973) 83.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Chiba, M. Rapid determination of molar ratios in binary systems by 14 mev neutron activation analysis. J. Radioanal. Chem. 20, 665–676 (1974). https://doi.org/10.1007/BF02514311
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF02514311