Journal of Radioanalytical Chemistry

, Volume 20, Issue 2, pp 619–626 | Cite as

Rare earth analysis of usgs rocks SCo-1 and STM-1

Evaluation of standards for homogeneity and of the precision and accuracy of a procedure for neutron activation analysis
  • S. T. Kosiewicz
  • P. J. Schomberg
  • L. A. Haskin


Twelve of the rare-earth elements (La, Ce, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Yb and Lu) were determined by radiochemical neutron activation analysis on two samples per bottle from two bottles each of SCo-1 (Cody shale) and STM-1 (nepheline syenite). The data provide no evidence for differences in REE concentrations between bottles of the same rock. Values of the concentrations for most of the REE in SCo-1 and STM-1, based on the samples analyzed, have been established to better than ±10% overall uncertainty, with a 95% confidence limit.


Analytical Precision Nepheline Syenite Irradiation Standard Radiochemical Neutron Activation Analysis Random Uncertainty 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    F. J. Flanagan, Geochim. Cosmochim. Acta, 31 (1967) 289.CrossRefGoogle Scholar
  2. 2.
    F. J. Flanagan, Geochim. Cosmochim. Acta, 33 (1969) 81.CrossRefGoogle Scholar
  3. 3.
    F. J. Flanagan, Geochim. Cosmochim. Acta, 34 (1970) 121.CrossRefGoogle Scholar
  4. 4.
    F. J. Flanagan, Geochim. Cosmochim. Acta, 37 (1973) 1189.CrossRefGoogle Scholar
  5. 5.
    M. Fleischer, Geochim. Cosmochim. Acta, 33 (1969) 65.CrossRefGoogle Scholar
  6. 6.
    F. J. Flanagan, U.S. Geological Survey Professional Paper 840.Google Scholar
  7. 7.
    E. B. Denechaud, Rare-earth Activation Analysis: Improvement and Application of Stretishorn Dike and Duluth Complex. Ph. D. Thesis, University of Wisconsin, Madison, 1969.Google Scholar
  8. 8.
    E. B. Denechaud, P. A. Helmke, L. A. Haskin, J. Radioanal. Chem., 6 (1970) 97.Google Scholar
  9. 9.
    C. F. Bennett, N. L. Franklin, Statistical Analysis in Chemistry and the Chemical Industry, Wiley, New York, 1954, p. 724.Google Scholar
  10. 10.
    O. L. Davies, Statistical Methods in Research and Production: 2nd ed, revised. Oliver and Body, London, 1949, p. 292.Google Scholar
  11. 11.
    L. A. Haskin, F. A. Frey, Science, 152 (1966) 299.CrossRefGoogle Scholar
  12. 12.
    R. H. Filby, A. I. Davis, K. R. Shah, G. G. Wainscott, W. A. Haller, W. A. Cassatt, Gamma Ray Energy Tables for Neutron Activation Analysis. WSUNRC-97(2), Washington State University, 1970.Google Scholar
  13. 13.
    P. A. Helmke, L. A. Haskin, R. L. Korotev, K. E. Zeige, Proc. 3rd Lunar Sci. Conf., Geochim. Cosmochim. Acta Suppl. MIT Press, 3 (1972) 1275.Google Scholar
  14. 14.
    N. J. Hubbard, P. A. Gast, M. Rhodes, H. Wiesmann, Revised Abstracts, 3rd Lunar Sci. Conf., C. Watkins, (Ed.), Lunar Science Institute, Houston, Texas, Abstract No. 407.Google Scholar

Copyright information

© Akadémiai Kiadó 1974

Authors and Affiliations

  • S. T. Kosiewicz
    • 1
  • P. J. Schomberg
    • 1
  • L. A. Haskin
    • 1
  1. 1.Department of ChemistryUniversity of WisconsinMadison(USA)

Personalised recommendations