Advertisement

Journal of Radioanalytical and Nuclear Chemistry

, Volume 285, Issue 3, pp 659–665 | Cite as

Separation and inductively coupled plasma optical emission spectrometric (ICP-OES) determination of trace impurities in nuclear grade uranium oxide

  • K. Satyanarayana
  • Smeer Durani
Article

Abstract

A simple and rapid inductively coupled plasma optical emission spectrometric method for the determination of trace level impurities like REEs, Y, Cd, Co, V, Mg, B, Ca, Cr, Mn, Ni, Cu, Zn and Al in uranium oxide samples is described. The method involves solvent extraction separation of uranium from 6 M HNO3 acid medium using di (2-ethyl hexyl) phosphoric acid in toluene, which selectively separates uranium leaving behind the trace impurities in the aqueous media, for quantification by ICP-OES. The method has been applied to few synthetic samples and five certified reference U3O8 standards. The results are compared with other methods such as TBP-TOPO-CCl4 and 1,2 diaminocyclohexane N,N,N′,N′-tetra acetic acid (CyDTA)–ammonium hydroxide (NH4OH) separation techniques. Different experimental parameters like contact time, acidity, aqueous to organic ratio etc., are optimized for better and accurate results. The method is simple, rapid, accurate and precise for all the studied elements, showing a relative standard deviation of 1.5–12.0% at trace levels studied (5.5–12% at 0.2 μg/mL and 1.5–6.0% at 0.5 μg/mL), on the synthetic samples prepared from high purity oxides.

Keywords

Nuclear grade uranium ICP-OES Solvent extraction Trace impurities 

Notes

Acknowledgments

The authors profusely thank Shri. K. Umamaheswar, Additional Director (R&D), and Dr. Anjan Chaki, Director, AMD, Hyderabad for their constant encouragement in the R&D activities and also for the kind permission to publish these findings.

References

  1. 1.
    Olivera OP Jr, Sarkis JS (2002) J Radioanal Nucl Chem 254:519CrossRefGoogle Scholar
  2. 2.
    Rajeswari B, Dhawale BA, Bangia TR, Mathur JN, Page AG (2002) J Radioanal Nucl Chem 3:479CrossRefGoogle Scholar
  3. 3.
    Lordelli AR, Abra A, Gomes RP (1979) J Nucl Mater 81:241CrossRefGoogle Scholar
  4. 4.
    Argekar AA, Kulkarni MJ, Mathur JN, Page AG (2002) Talanta 56:591CrossRefGoogle Scholar
  5. 5.
    Burger S, Riciputi LR, Bostick DA (2007) J Radioanal Nucl Chem 274:491CrossRefGoogle Scholar
  6. 6.
    Goyal N, Purohit PJ, Dhobale AR, Patel BM, Page AG, Sastry MD (1987) J Anal At Spectrom 2:459CrossRefGoogle Scholar
  7. 7.
    Santoliquido PM (1988) J Res Natl Bur Stand 93:452Google Scholar
  8. 8.
    Natarajan V, Dhawale BA, Rajeswari B, Hon NS, Tulasidas SK, Porwal NK, Godbole SV, Manchanda VK (2008) Spectrochim Acta B63:817Google Scholar
  9. 9.
    Misra NL, Mudher Singh KD, Adya VC, Rajeswari B, Venu Gopal V (2005) Spectrochim Acta B60:834Google Scholar
  10. 10.
    Wolf SF, Bowers DL, Cunnane JC (2005) J Radioanal Nucl Chem 263:581CrossRefGoogle Scholar
  11. 11.
    Hills SJ (1999) Inductively coupled plasma spectrometry and its application. Shieffied Academic Press, EnglandGoogle Scholar
  12. 12.
    Nolte J (2003) ICP emission spectrometry—a practical guide. Wiley-VCH, GermanyGoogle Scholar
  13. 13.
    Thompson M, Walsh JN (1983) A handbook of inductively coupled plasma spectrometry. Blackie, LondonGoogle Scholar
  14. 14.
    Sato T (1958) J Inorg Nucl Chem 6:344CrossRefGoogle Scholar
  15. 15.
    Gupta CK, Krishnamurthy K (1992) Int Mater Rev 37:197Google Scholar
  16. 16.
    Aziz S, Jan S, Waqar F, Mohammad B, Hakim M, Yawar W (2010) J Radioanal Nucl Chem 284:117CrossRefGoogle Scholar
  17. 17.
    Satyanarayana K, Durani S, Malhotra RK (1999) DAE-BRNS symposium on spectroscopy of lanthanides and Actinides. SLA-99:181Google Scholar
  18. 18.
    Malhotra RK, Satyanarayana K (1999) Talanta 50:601CrossRefGoogle Scholar
  19. 19.
    DAE—Inter Laboratory Comparison Experiments (ILCE) for trace metal assay of uranium—Phase I: experiments: development of certified U3O8 reference materials, compiled by radio chemistry division and process development division (1999) BARC, Trombay, MumbaiGoogle Scholar
  20. 20.
    DAE—Inter Laboratory Comparison Experiments (ILCE) for trace metal assay of uranium—Phase II: experiments: development of certified U3O8 reference materials, compiled by radiochemistry division and process development division (2003) BARC, Trombay, MumbaiGoogle Scholar

Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2010

Authors and Affiliations

  1. 1.Department of Atomic EnergyChemistry Group, Atomic Minerals Directorate for Exploration and ResearchHyderabadIndia

Personalised recommendations