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Determination of 90Sr/90Y in Wheat Grains, Soil, and Deposition Samples by TBP Extraction and Cerenkov Counting

Published online by Cambridge University Press:  18 July 2016

Udo Ch Gerstmann  and
Vlasta Tschöpp
Udo Ch Gerstmann*
Affiliation:
GSF-National Research Center for Environment and Health, Institute of Radiation Protection, Ingolstaedter Landstrasse 1, D-85764 Neuherberg, Germany
Vlasta Tschöpp
Affiliation:
GSF-National Research Center for Environment and Health, Institute of Radiation Protection, Ingolstaedter Landstrasse 1, D-85764 Neuherberg, Germany
*
Corresponding author. Email: gerstmann@gsf.de.
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Abstract

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Within the framework of radioecological studies, 90Sr was determined in wheat grains, soil, and deposition samples. The radiochemical purification of 90Y consisted of liquid-liquid extraction by tributyl phosphate (TBP), followed by hydroxide and oxalate precipitations and, if necessary, the removal of thorium by anion exchange chromatography. The procedure proved to be very robust and reliable, having yttrium yields of 92.7 ± 4.6% for 1-kg wheat samples, 90.9 ± 4.2% for 50-g soil samples, and 90.6 ± 3.2% for wet and dry deposition samples. 90Y was determined by Cerenkov counting and proportional counting. By optimizing the Cerenkov counting window, a figure of merit (FOM) of 4750 could be reached using a Quantulus™ 1220 system. Minimum detectable activities were in the range of 10 mBq.

Type
Articles
Information
Radiocarbon , Volume 48 , Issue 2 , 2006 , pp. 197 - 204
Copyright
Copyright © 2006 by the Arizona Board of Regents on behalf of the University of Arizona 

References

Baratta, EJ, Ferri, ES. 1967. Determination of strontium-90 in human bones by tributyl phosphate. Analytical Chemistry 39:846–7.CrossRefGoogle ScholarPubMed
Bem, H, Bakir, YY, Shuker, SM. 1991. A rapid method for the determination of strontium-90 in powdered milk. Journal of Radioanalytical and Nuclear Chemistry 147:263–8.CrossRefGoogle Scholar
BMU [Bundesministerium für Umwelt; German Ministry for the Environment]. 2000. Messanleitungen für die überwachung der Radioaktivität in der Umwelt und zur Erfassung radioaktiver Emissionen aus kerntechnischen Anlagen. Munich: Urban & Fischer. In German.Google Scholar
Borcherding, J, Nies, H. 1986. An improved method for the determination of 90Sr in large samples of seawater. Journal of Radioanalytical and Nuclear Chemistry 98:127–31.CrossRefGoogle Scholar
Bunzl, K, Kracke, W. 1990. Simultaneous determination of 238Pu, 239+240Pu, 241Pu, 241Am, 242Cm, 244Cm, 89Sr and 90Sr in vegetation samples, and application to Chernobyl-fallout contaminated grass. Journal of Radioanalytical and Nuclear Chemistry 138:83–91.CrossRefGoogle Scholar
Bunzl, K, Kracke, W. 1991. A simple radiochemical determination of 90Sr in environmental samples. Journal of Radioanalytical and Nuclear Chemistry 148:115–9.CrossRefGoogle Scholar
Bunzl, K, Kracke, W, Meyer, H. 1996. A simple radiochemical determination of 90Sr in brines. Journal of Radioanalytical and Nuclear Chemistry 212:143–9.CrossRefGoogle Scholar
Ghods, A, Hussain, M, Mirna, A. 1994. Rapid determination of 90Sr in foodstuffs and environmental material. Radiochimica Acta 65:271–4.CrossRefGoogle Scholar
ISO [International Organization for Standardization]. 1995. Guide to the expression of uncertainty in measurement. Geneva, Switzerland.Google Scholar
L'Annunziata, MFL. 2003. Cherenkov counting. Chapter 8. In: L'Annunziata MFL. Handbook of Radioactivity Analysis. Amsterdam: Academic Press.Google Scholar
LaRosa, JJ, Cooper, EL, Ghods-Esphahani, A, Jansta, V, Makarewicz, M, Shawky, S, Vajda, N. 1992. Radiochemical methods used by the IAEA's laboratories at Seibersdrof for the determination of 90Sr, 144Ce and Pu radionuclides in environmental samples collected for the international Chernobyl project. Journal of Environmental Radioactivity 17:183–209.CrossRefGoogle Scholar
Mercer, ER, Burton, JD, Gunn, KB, Black, A. 1965. The evaluation of a rapid solvent extraction method for the determination of strontium-90 in milk. Health Physics 11:37–40.CrossRefGoogle ScholarPubMed
Mirna, A, Ghods, A, Veselsky, J, Schelenz, R. 1990. Zur schnellen Bestimmung von Strontium-90. Untersuchungen an Separatorenfleisch und Gewürzen. Fleischwirtschaft 70:710–2. In German.Google Scholar
Rosner, G, Hötzl, H, Winkler, R. 1990. Simultaneous radiochemical determination of plutonium, strontium, uranium, and iron nuclides and application to atmospheric deposition and aerosol samples. Fresenius' Journal of Analytical Chemistry 338(5):606–9.CrossRefGoogle Scholar
Rosner, G, Hötzl, H, Winkler, R. 1996. Continuous wet-only and dry-only deposition measurements of 137Cs and 7Be: an indicator of their origin. Applied Radiation and Isotopes 47(9–10):1135–9.CrossRefGoogle Scholar
Schimmack, W, Zimmermann, G, Sommer, M, Dietl, F, Schultz, W, Paretzke, HG. 2004. Soil-to-grain transfer of fallout 137Cs for 28 winter wheat cultivars as observed in field experiments. Radiation and Environmental Biophysics 42:275–84.CrossRefGoogle ScholarPubMed
Shawky, S, El-Tahawy, M. 1999. Distribution pattern of 90Sr and 137Cs in the Nile delta and the adjacent regions after Chernobyl accident. Applied Radiation and Isotopes 50(2):435–43.CrossRefGoogle ScholarPubMed
Tinker, RA, Smith, JD, Cooper, MB. 1997. Determination of strontium-90 in environmental samples containing thorium. Analyst 122:1313–7.CrossRefGoogle Scholar
Velten, RJ, Goldin, AS. 1961. Simplified determination of strontium-90: preferential extraction of yttrium with tributyl phosphate. Analytical Chemistry 33:128–31.CrossRefGoogle Scholar