Improvement of Am and Cm determination in soil samples

  • M. Pimpl
  • R. H. Higgy


The determination of Am and Cm in a radiochemical procedure for the sequential analysis of Pu, Am, and Cm in soils was improved and optimized. This method uses only solvent extraction and extraction chromatography for the separation and cleaning of Am and Cm from soils up to 50 g sample weight. After leaching with 8M nitric acid, Pu is extracted with TOPO/cyclohexane. Am and Cm are extracted out of the remaining leaching solution at pH 1 with TOPO/cyclohexane, too. After backextraction with 2M nitric acid, Am and Cm are separated from traces of matrix elements, especially Fe, on a TRU-column, afterwards on a TEVA-column from lanthanides (TRU-resin and TEVA-resin of Eichrom Europe, SARL, Paris, France). The clean Am/Cm-fraction is electroplated and measured by alpha-spectrometry. The detection limit of this optimized procedure is 0.03 Bq/kg soil at a 95% confidence level.


HCOOH HDEHP Radiochemical Procedure TEVA Resin Nuclear Installation 
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  1. 1.
    United Nations Scientific Committee on the Effects of Atomic Radiation. Ionizing Radiation: Sources and Biological Effects, UNSCEAR 1982 Report, United Nations, New York, 1982.Google Scholar
  2. 2.
    German Commission on Radiological Protection (SSK): Clearance of Materials, Buildings and Sites with Negligible Radioactivity from Practices Subject to Reporting to Authorization; Recommendation by the Commission on Radiological Protection; passed at the 151st meeting on 12 February, 1998.Google Scholar
  3. 3.
    European Commission, Recommended Radiological Protection Criteria for the Clearance of Buildings and Building Rubble Arising from the Dismantling of Nuclear Installations; Draft of a Recommendation, Radiation Protection, No. 101, Luxembourg, March 1999.Google Scholar
  4. 4.
    C. Graetz, E. Kugeler, I. Neuhaus, A. NÑsser, M. Schramke, R. Sefzig, S. Thierfeld, Clearance Levels for Nuclear Sites in Germany, Proc. 2nd Intern. Symp. on Release of Radioactive Material from Regulatory Control, TÑV Nord Akademie, Hamburg, Germany, November 8-10, 1999, p. 84.Google Scholar
  5. 5.
    U. Hoeppener-Kramar, M. Pimpl, F. Willmann, J. Radioanal. Nucl. Chem., 226 (1997) 99.CrossRefGoogle Scholar
  6. 6.
    E. Holm, R. Fukai, Talanta, 23 (1976) 853.CrossRefGoogle Scholar
  7. 7.
    E. Holm, S. Ballestra, R. Fukai, Talanta, 26 (1979) 791.CrossRefGoogle Scholar
  8. 8.
    E. Holm, E. Ballestra, in: Measurement of Radionuclides in Food and the Environment, Technical Report Series No. 295, IAEA, Vienna, 1989, p. 105.Google Scholar
  9. 9.
    A. Yamoto, J. Radioanal. Chem., 75 (1982) 265.CrossRefGoogle Scholar
  10. 10.
    M. Afsar, H. SchÑttelkopf, KfK-Report 4346, 1988.Google Scholar
  11. 11.
    M. Pimpl, H. SchÑttelkopf, Report SLU-REK-61, 1986, p. 69.Google Scholar
  12. 12.
    M. H. Hiatt, P. B. Hahn, Anal. Chem., 51 (1979) 295.CrossRefGoogle Scholar
  13. 13.
    C. W. Sill, K. W. Puphal, F. D. Hindman, Anal. Chem., 46 (1974) 1725.CrossRefGoogle Scholar
  14. 14.
    R. P. Bernabee, D. R. Percifal, F. D. Hindman, Anal. Chem., 52 (1980) 2351.CrossRefGoogle Scholar
  15. 15.
    R. P. Bernabee, Health Phys., 44 (1983) 688.Google Scholar
  16. 16.
    S. Leskinen, J. K. Miettinen, T. Jaakola, J. Radioanal. Nucl. Chem., 115 (1987) 289.CrossRefGoogle Scholar
  17. 17.
    T. D. Filer, Anal. Chem., 46 (1974) 608.CrossRefGoogle Scholar
  18. 18.
    D. Knab, Anal. Chem., 51 (1979) 1095.CrossRefGoogle Scholar
  19. 19.
    A. Berne, Americium Separation in Larger Soil Samples (up to 50 g), 41st Annual Conf. on Bioassay, Analytical & Environmental Radiochemistry (Eichrom Workshop), Boston, MA, 1995.Google Scholar
  20. 20.
    A. Berne, Report EML-575, 1995.Google Scholar
  21. 21.
    J. H. Kaye, R. S. Strebin, R. D. Orr, J. Radioanal. Nucl. Chem., 194 (1995) 191.CrossRefGoogle Scholar
  22. 22.
    L. L. Smith, J. S. Crain, J. S. Yaeger, E. P. Horwitz, H. Diamond, R. Chiarizia, J. Radioanal. Nucl. Chem., 194 (1995) 151.CrossRefGoogle Scholar
  23. 23.
    W. C. Burnett, D. R. Corbett, M. Schultz, E. P. Horwitz, R. Chiarizia, M. Dietz, A. Thakkar, M. Fern, J. Radioanal. Nucl. Chem., 226 (1997) 121.CrossRefGoogle Scholar
  24. 24.
    S. J. Goldstein, C. A. Hensley, C. E. Arments, R. J. Peters, Anal. Chem., 69 (1997) 809.CrossRefGoogle Scholar
  25. 25.
    R. A. Boll, G. K. Schweitzer, R. W. Garber, J. Radioanal.Nucl. Chem., 226 (1997) 121.CrossRefGoogle Scholar
  26. 26.
    J. Moreno, N. Vajda, P. R. Danesi, J. J. LaRosa, E. Zeiler, M. Sinojmeri, J. Radioanal. Nucl. Chem., 226 (1997) 279.CrossRefGoogle Scholar
  27. 27.
    J. Moreno, J. J. Larosa, P. R. Danesi, K. Bums, P. Deregge, N. Vaida, M. Sinojmeri, Radioact. Radiochem., 9 (1998) 35.Google Scholar
  28. 28.
    H. SchÑttelkopf, KfK-Report 3035, 1981.Google Scholar
  29. 29.
    M. Pimpl, H. SchÑttelkopf, Report SLU-REK-61, 1986,p. 53.Google Scholar
  30. 30.
    K. W. Puphal, D. R. Olsen, Anal. Chem., 44 (1972) 284.CrossRefGoogle Scholar

Copyright information

© Kluwer Academic Publishers/Akadémiai Kiadó 2001

Authors and Affiliations

  • M. Pimpl
    • 1
  • R. H. Higgy
    • 2
  1. 1.Central Safety DepartmentForschungszentrum KarlsruheKarlsruheGermany
  2. 2.National Centre for Nuclear Safety and Radiation ControlAtomic Energy AuthorityNasr City, CairoEgypt

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