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Sequential analysis of uranium and plutonium in environmental matrices by extractive liquid scintillation spectrometry

  • Priyanka J. Reddy , Vandana Pulhani EMAIL logo , Sanjay D. Dhole , Shailesh S. Dahiwale , Sonali P. D. Bhade and Devendra D. Rao
Published/Copyright: July 9, 2018

Abstract

A methodology for sequential separation of uranium (U) and plutonium (Pu) followed by their estimation, using extractive liquid scintillation spectrometry was standardized for matrices like soil, fish and sediment. Various parameters for selective and efficient extraction and separation of Pu and U in the presence of interfering matrix elements with HDEHP bis(2-ethylhexy1) phosphoric acid as an extracting agent were investigated. Quenching effect of the various extracting reagents on resolution of α spectrum of analytes and reduction in these interferences is discussed in the current study. Standardized procedure gave about 91% of extraction of spiked Pu into the organic phase. Performance of the method was tested by separating and estimating U and Pu in International Atomic Agency (IAEA) certified reference materials like soil/sediment/fish.

References

1. Tavcar, P., Smodik, B., Benedik, L.: Radiological characterization of low and intermediate level radioactive wastes. J. Radioanal. Nucl. Chem. 273(3), 593 (2007).10.1007/s10967-007-0916-4Search in Google Scholar

2. Wang, J.-J., Chen, I.-J., Chiu, J.-H.: Sequential isotopic determination of plutonium, thorium, americium, strontium and uranium in environmental and bioassay samples. Appl. Radiat. Isot. 61, 299 (2004).10.1016/j.apradiso.2004.03.025Search in Google Scholar PubMed

3. Moreno, J., Vajda, N., Danesi, P. R., Larosa, J. J., Zeiller, F., Sinojmeri, M.: Combined procedure for the determination of 90Sr, 241Am and Pu radionuclides in soil samples. J. Radioanal. Nucl. Chem. 226(1–2), 279 (1997).10.1007/BF02063661Search in Google Scholar

4. Boulyga, S. F., Testa, C., Desideri, D., Becker, J. S. Optimization and application of ICP-MS and alpha-spectrometry for determination of isotopic ratios of depleted uranium and plutonium in samples collected in Kosovo. J. Anal. At. Spectrom. 16, 1283 (2001).10.1039/b103178nSearch in Google Scholar

5. Liquid Scintillation Alpha Spectrometry: A Method for Today and Tomorrow W. Jack McDowell and Betty L. McDowell, 105. CRC Press, Inc., 2000 Corporate Blvd., N.W., Boca Raton, Florida 33431 (407) 994-0555 (1989).Search in Google Scholar

6. Ayranov, M., Wacker, L., Krahenbuhl, U.: Pu separation by solvent extraction for the determination by photon electron rejecting alpha liquid scintillation spectrometry. Radiochim. Acta. 90, 199 (2002).10.1524/ract.2002.90.4_2002.199Search in Google Scholar

7. McDowell, W. J., McDowell, B. L.: Liquid Scintillation Alpha Spectrometry. CRC Press, Inc., Boca Raton (1994).Search in Google Scholar

8. Oliveira, J. M., Carvalho, F. P.: Sequential extraction procedure for determination of uranium, thorium, radium, lead and polonium radionuclides by alpha spectrometry in environmental samples. Czech. J. Phys. 56, 545 (2006).10.1007/s10582-006-0548-xSearch in Google Scholar

9. Wallner, G., Wagner, R., Katzlberger, C.: Natural radionuclides in Austrian mineral water and their sequential measurement by fast method. J. Environ. Radioact. 99, 1090 (2008).10.1016/j.jenvrad.2007.12.021Search in Google Scholar PubMed

10. Saueia, C. H. R., Mazzilli, B. P., Taddei, M. H. T.: Sequential radioanalytical method for the determination of U and Th isotopes, 226Ra and 210Po using alpha spectrometry in samples of the Brazilian phosphate industry. J. Radioanal. Nucl. Chem. 281, 201 (2009).10.1007/s10967-009-0118-3Search in Google Scholar

11. Komosa, A., Piekarz, M.: Optimization of plutonium extraction with methyltrioctylammonium chloride preceding its determination by liquid scintillation spectrometry. Nukleonika 55(2), 137 (2010).Search in Google Scholar

12. Schwendiman, L. C., Healy, J. W., Reid, D. L.: Hanford Works Report, H.W. 22680, Richland, Washington (1951).Search in Google Scholar

13. Horrocks, D. L., Studier, M. H.: Low level plutonium-241 analysis by liquid scintillation techniques. Anal. Chem. 30(1), 1747 (1958).10.1021/ac60143a009Search in Google Scholar

14. Keough, R. F., Powers, G. J.: Determination of plutonium in biological materials by extraction and liquid scintillation counting. Anal. Chem. 42(3), 419 (1970).10.1021/ac60285a025Search in Google Scholar PubMed

15. Akatsu, J.: Separation of plutonium-238 from fission products by solvent extraction using HDEHP. J. Nucl. Sci. Technol. 10(11), 696 (1973).10.1080/18811248.1973.9735475Search in Google Scholar

16. McDowell, W. J., Coleman, C. F.: Some methods of controlling quenching in extractive scintillators for liquid scintillation counting of alpha emitting radionuclides. Anal. Lett. 6(9), 795 (1973).10.1080/00032717308058735Search in Google Scholar

17. Foti, S. C., Freiling, E. C.: The determination of the oxidation states of tracer uranium, neptunium, and plutonium in aqueous media. Talanta 11, 385 (1964).10.1016/0039-9140(64)80047-3Search in Google Scholar

18. Nitsche, H., Lee, S. C., Gatti, R. C.: Determination of plutonium oxidation states at trace levels pertinent to nuclear waste disposal. J. Radioanal. Nucl. Chem. 124(1), 171 (1988).10.1007/BF02035515Search in Google Scholar

19. Aupiais, J.: Rapid determination of uranium activity and concentration in water by alpha liquid scintillation with α/β discrimination. J. Anal. Chim. Acta 517, 221 (2004).10.1016/j.aca.2004.04.035Search in Google Scholar

20. Reddy, P. J., Pulhani, V., Dhole, S. D., Bhade, S. P. D., Anilkumar, S., Kolekar, R. V., Singh, R.: Application of extractive liquid scintillation spectrometry for rapid determination of uranium. J. Radioanal. Nucl. Chem. 309, 1049 (2016).10.1007/s10967-016-4698-4Search in Google Scholar

21. Reddy, P. J., Pulhani, V., Dhole, S. D., Dahiwale, S. S., Bhade, S. P. D., Kolekar, R. V., Anilkumar, S., Singh, R.: Studies on matrix interferences during uranium analysis by extractive liquid scintillation technique. J. Radioanal. Nucl. Chem. 311(3), 1923 (2017).10.1007/s10967-016-5140-7Search in Google Scholar

22. Duffey, J. M., Case, F. I., Metzger, R. L., Jessop, B. J., Schweitzer, G. K.: Development of a rapid procedure for the measurement of uranium in drinking water by PERALS spectrometry. J. Radioanal. Nucl. Chem. 221(1–2), 115 (1997).10.1007/BF02035252Search in Google Scholar

23. Qiao, J., Hou, X., Miró, M., Roos, P.: Determination of plutonium isotopes in waters and environmental solids: a review. J. Anal. Chim. Acta 652(1–2), 66 (2009).10.1016/j.aca.2009.03.010Search in Google Scholar PubMed

24. MDA ISO 11929:2010, International Standard, Determination of characteristic limits (decision threshold, detection limit and limits of the confidence interval) for measurements of ionizing radiation – fundamentals and application, International Organization for Standardization (ISO), Geneva, Switzerland (2010).Search in Google Scholar

25. Phal, D. G., Kannan, S. K., Ramakrishna, V. V.: Studies on the solvent extraction behaviour of Pu (IV) from nitric acid, nitric-perchloric acid and hydrochloric acids, by di,2-ethylhexyl phosphoric acid (HDEHP). No. BARC—1994/E/008. Bhabha Atomic Research Centre, 38 (1994).Search in Google Scholar

26. Fueg, B., Tshachtli, T., Krahenbuhl, U.; Alpha liquid scintillation spectrometry used for the measurement of uranium/thorium disequilibria in soil samples. Radiochim. Acta 78, 47 (1997).10.1524/ract.1997.78.special-issue.47Search in Google Scholar

Received: 2017-12-15
Accepted: 2018-05-23
Published Online: 2018-07-09
Published in Print: 2018-10-25

©2018 Walter de Gruyter GmbH, Berlin/Boston

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