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X-Ray Emission Spectrographic Analysis of High-Purity Rare-Earth Oxides

  • Farrel W. Lytle (a1) and Howard H. Heady (a1)

Abstract

Minor amounts of rare-earth elements (0.01 to 1.0%) in high-purity rare-earth oxides may be determined by a fluorescent X-ray procedure. The analysis of high-purity yttrium, cerium, praseodymium, neodymium, and samarium is described. Basic to the method is accurate determination of spectral line intensity above background. Sample and standard preparation, choice of analytical lines, and utilization of a helium path to increase X-ray intensities are discussed. Precision and accuracy were evaluated by analyzing samples of known composition. The average of five separate determinations showed an average error of about 10 per cent.

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1 Fassel, V. A., Cook, H. D., Krotz, L. C., Kehres, P. W., “Quantitative Spectrographic Analysis of the Rare-Earth Elements,” Spectrochimica Acta, Vol. 5, 1952, p. 201.
2 Fassel, V. A., Wilhelm, H. A., “The Quantitative Spectrographk Analysis of the Rare-Earth Elements,” Jour. Opt. Soc. America, Vol. 38, 1948, p. 518.
3 Stewart, D. C., Kato, D., “Analysis of Rare-Earth Mixtures by a Recording Spectrophotometer,” Anal. Chem., Vol. 30, 1958, p. 164.
4 Heidel, R. H., Fassel, V. A., “X-Ray Fluoresoent Spectrometric Determination of Yttrium in Rare-Earth Mixtures,” Anal. Chem., Vol. 30, 1956, p. 68.
5 Lytle, F. W. Blackledge, J. I., Heller, H. A., “X-Ray Emission Spectrographic Analysis of Bastnaesite Rare Earths,” Bureau of Mines Rept. of Investigations 5378, 1957, pp. 16.
6 Salmon, M. L., Blackledge, J. P., “A Review of Improved Mineral Analyses by Fluorescent X-Ray Spectrography,” Norelco Reporter, Vol. 3, 1956, p. 68.
7 Brissey, R. M., “Analysis of High Temperature Alloys by X-ray Fluorescence,” Anal. Chera., Vol. 25, 1953, p. 190.
8 Campbell, W. J., Carl, H. E., White, C. E., “Quantitative Analysis by Fluorescent X-ray Spectrography,” Anal. Chem., Vol. 29, 1957, p. 1009.
9 Friedlander, C., Kennedy, J. W., Introduction to Radiochemistry, John Wiley & Son, New York, N. Y., p, 203. 1949.

X-Ray Emission Spectrographic Analysis of High-Purity Rare-Earth Oxides

  • Farrel W. Lytle (a1) and Howard H. Heady (a1)

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