Determination of Uranium Isotopes in Spent Nuclear Fuels by Isotope Dilution Mass Spectrometry

동위원소희석 질량분석법을 이용한 사용후핵연료 중 우라늄 동위원소 정량

  • 김정석 (한국원자력연구소 원자력화학연구부) ;
  • 전영신 (한국원자력연구소 원자력화학연구부) ;
  • 손세철 (한국원자력연구소 원자력화학연구부) ;
  • 박순달 (한국원자력연구소 원자력화학연구부) ;
  • 김종구 (한국원자력연구소 원자력화학연구부) ;
  • 김원호 (한국원자력연구소 원자력화학연구부)
  • Received : 2003.09.29
  • Accepted : 2003.10.16
  • Published : 2003.12.25

Abstract

The determination of uranium and its isotopes in spent nuclear fuels by isotope dilution mass spectrometry (IDMS) has been studied. The spent fuel samples were dissolved in 8 M $HNO_3$ or its mixture with 14 M $HNO_3-0.05M$ HF. The dissolved solutions were filterred on membrane filter with $1.2{\mu}m$ pore size. The uraniums in the spiked and unspiked sample solutions were quantitatively adsorbed by anion exchange resin, AG 1X8 and eluted with 0.1 M HCl. The contents of uranium and its isotopes ($^{234}U$, $^{235}U$, $^{236}U$$^{238}U$) in the spent fuel samples were determined by isotope dilution mass spectrometric method using $^{233}U$ as spike. The spike reference solution was standarized by reverse isotope dilution mass spectrometry (R-IDMS) using natural and depleted uranium. The results from IDMS were in average relative difference of 0.34% when compared with those by the potentiometric titration method.

References

  1. O. J. Heinonen and R. Korhonen, J. Radioanal. Chem., 64(1-2), 65(1981).
  2. K. G. Heumann et aI., Analyst, 120, 1291 (1995).
  3. 노성기 외, KAERI/PIED/note-001/87. 'KNU 가압경수로 사용후핵연료 내 방사성 물질함유량', 한국원자력연구소, 1987.
  4. H. Kleykamp, J. Nucl. Mater., 171, 181(1990).
  5. 손세철 외, 'PWR 사용후핵연료 중 우라늄과 플루토늄의 전기화학적 정량', '99 춘계한국원자력학회 학술발표회, 1999.
  6. J. S. Becker and H. J. Dietze, Spectrochim. Acta Part B, 1475(1998).
  7. M. Lucas et aI., IAEA-SM-260/26, Nuclear Safeguards Technology 1982, Vol. I, Proceedings of a Symposium Vienna, 8-12 Nov. 1982, IAEA, Vienna, 1983.
  8. K. S. Choi, J. S. Kim, S. H. Han, S. D. Park, Y. J. Park, K. S. Joe and W. H. Kim, Anal. Sci. Tech., 13(5), 584(2000).
  9. L. Koch and D. Steinert, 'Simultaneous Multielement Precision Isotope Analysis of Nuclear Fuels' , Advances in Mass Spectrometry, Vol. 8A, pp. 330, Heyden & Son LTD, London, 1980.
  10. American Society for Testing and Materials Standard Method E 267-78, (Reapproved 1985), 119(1987).
  11. 김원호 외, KAERI/RR-2133/2000. '사용후핵연료 관리이용기술 개발 - 사용후핵연료 화학특성 연구', Chap. 3, 과학기술부, 2000.
  12. M. Lucas, Analusis, 8(10), 455(1980).
  13. P. De Bievre, Fresenius J. Anal. Chem., 337, 766(1990).
  14. M. Lucas, Analusis, 6(2), 47(1978).
  15. T. Adachi et aI., J. Nucl. Mater. 174, 60 (1990).
  16. J. S. Kim et aI., J. Korean Nucl. Soc., 33(4), 375(2001).
  17. J. S. Kim et aI., J. Korean Nucl. Soc., 21(4), 277(1989).
  18. J. Tolgyessy and M. KyrS, Radioanalytical Chemistry, in Ellis Horwood Series in Analytical Chemistry, Vol. 1, Chap 3., John Wiley & Sons, Chichester, England, 1989.
  19. American Society for Testing and Materials Standard Method E 321-96, 1(1996).