PL EN


Preferencje help
Widoczny [Schowaj] Abstrakt
Liczba wyników
Tytuł artykułu

Optimization of plutonium extraction with methyltrioctylammonium chloride preceding its determination by liquid scintillation spectrometry

Autorzy
Treść / Zawartość
Identyfikatory
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Optimization of selective extraction conditions for separating plutonium from uranium and thorium standard solutions using methytrioctylammonium chloride (Aliquat 336) as extracting agent is presented. Influence of such parameters as concentration of extracting agent and nitric acid, and kind of reducing agent on the efficiency of extraction were studied. The method was developed for standard solutions of Pu, Th and U. A Quantulus liquid scintillation spectrometer was used for determination of alpha activity of these isotopes. It was found that using HDEHP in the first stage of the elaborated procedure and Aliquat 336 in the next, it is possible to separate Pu from the mixture of U and Th. Optimal values of measuring parameters such as a PSA value and a scintillation cocktail volume were established as well.
Czasopismo
Rocznik
Strony
137--141
Opis fizyczny
Bibliogr. 22 poz., rys.
Twórcy
autor
autor
  • Department of Radiochemistry and Colloid Chemistry, Maria Curie-Skłodowska University, 3 M. Curie-Skłodowskiej Sq., 20-031 Lublin, Poland, Tel.: +48 81 537 5631, Fax: +48 81 533 2811, andrzej.komosa@umcs.lublin.pl
Bibliografia
  • 1. Baba Y (1983) Determination of plutonium by solvent extraction – liquid scintillation method. J Radioanal Nucl Chem 79:83–92
  • 2. Borai EH, Lasheen YF, El-Sofany EA, Abdel-Rassoul AA (2008) Separation and subsequent determination of low radioactivity levels of radium by extraction scintillation. J Hazard Mater 156:123–128
  • 3. Eisenbud M, Gesell T (1997) Environmental radioactivity, 4th ed. Academic Press, San Diego
  • 4. El-Nadi YA, Daoud JA, Aly HF (2005) Modified leaching and extraction of uranium from hydrous oxide cake of Egyptian monazite. Int J Miner Process 76:101–110
  • 5. El-Nadi YA, El-Hefny NE, Daoud JA (2003) Mechanism of extraction of hexavalent uranium from alkaline medium by Aliquat-336/kerosene solution. J Nucl Radiochem Sci 4:19–22
  • 6. Environment Measurements Laboratory (1997) Procedures Manual HASL-300, 28th ed. Chieco MA (ed). US Department of Energy. Vol. 2, pp 123–128
  • 7. Kalmykov SN, Aliev RA, Sapozhnikow DYu, Sapozhnokov YuA, Afinogenov AM (2004) Determination of Np-237 by radiochemical neutron activation analysis combined with extraction chromatography. Appl Radiat Isot 60:595–599
  • 8. Kashirin IA, Tikhomirov VA, Ermakov AI, Sobolev AI, Malinovskii SV (2003) Application of extracting agents in liquid-scintillation alpha spectrometry. Atom Energy 95:720–726
  • 9. Kim JI (1986) Chemical behaviour of transuranic elements in natural aquatic systems. In: Freeman AJ, Keller C (eds) Handbook on the physics and chemistry of the actinides. Vol. 4, Chapter 8. Elsevier Science Publishers BV, Amsterdam, pp 413–455
  • 10. Komosa A (2003) Physicochemical problems of determination and behaviour of plutonium isotopes in environment, especially beta radiating 241Pu. Rozprawy Habilitacyjne no 40. UMCS, Faculty of Chemistry, Lublin (in Polish)
  • 11. Komosa A, Ślepecka K (2009) Study on quenching effects for 14C and 3H measurement parameters using a Quantulus spectrometer. In: Eikenberg J, Jaggi M, Beer H, Baehrle H (eds) LSC 2008 Advances in liquid scintillation spectrometry. Radiocarbon, Tucson, Arizona, USA, pp 161–172
  • 12. Kuppers G (1997) Fast source preparation for alpha--spectrometry of uranium and transuranium isotopes. J Radioanal Nucl Chem 230:167–174
  • 13. Mishra S, Chakravortty V, Rao Vasudeva PR (1995) Synergistic extraction of uranium (VI) and americium (III) with binary mixtures of Aliquat 336 and PC 88A-TOPO from nitric-sulfuric acid medium. J Radioanal Nucl Chem 201:325–331
  • 14. Nuclear Energy Agency OECD (2002) Chernobyl: assessment of radiological and health impacts. 2002 Update of Chernobyl: ten years on. www.nea.fr/html/rp/chernobyl/
  • 15. Parus JL, Raab W, Radoszewski T (1993) Liquid scintillation counting of plutonium and/or americium concentrations. In: Noakes JE, Schonhofer F, Polach HA (eds) Liquid scintillation spectrometry 1992. Radiocarbon, Tucson, Arizona, USA, pp 233–237
  • 16. Pimpl M (1992) Increasing the sensitive of 241Pu determination for emission and immision control of nuclear installations by aid of liquid scintillation counting. J Radioanal Nucl Chem 161:429–436
  • 17. Toribio M, Garcia JF, Izquierdo-Ridorsa A, Rauret G (1997) Multivariate calibration and spectrum position correction for simultaneous determination of alpha and beta emitting plutonium isotopes by liquid scintillation. Anal Chim Acta 356:41–50
  • 18. UNSCEAR (1982) Ionizing radiation: sources and biological effects. UNSCEAR 1982 Report. www.unscear. org/unscear/en/publications/1982.html
  • 19. UNSCEAR (2000) Annex C: Exposures from man-made sources of radiation. In: Sources and effects of ionizing radiation. UNSCEAR 2000 Report. Vol. 1. www.unscear. org/docs/reports/annexc.pdf
  • 20. Yu-Fu Yu, Bjornstad HE, Salbu B (1991) Determination of low level alpha and beta emitters using liquid-liquid extraction and a liquid scintillation spectrometer. In: Garcia-Leon M, Madurga G (eds) Low-level measurements of man-made radionuclides in the environment. World Scientific, Singapore, pp 176–186
  • 21. Yu-Fu Yu, Salbu B, Bjornstad HE (1991) Recent advances in the determination of low level plutonium in environmental and biological materials. J Radioanal Nucl Chem 148:163–173
  • 22.Yu-Fu Yu, Salbu B, Bjornstad HE, Lien H (1990) Improvement for α-energy resolution in determination of low level plutonium by liquid scintillation counting. J Radioanal Nucl Chem 145:345–353
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BUJ7-0014-0023
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.