Abstract
A radioanalytical procedure has been developed for the determination of99Tc in environmental samples. The procedure consists of precipitation, solvent extraction, ion exchange, electrodeposition and radiation measurement. Rhenium was used as a non-isotopic carrier of99Tc. On the basis of 3σ counting error, the detection limits were 4.9·10−5 Bq/l, 7.4·10−3 Bq/kg wet and 7.4·10−2 Bq/kg dry for water, biota and soil samples, respectively. Sea water, seaweeds (brown algae) and soils were collected to evaluate the present levels of99Tc in Japan. The level of99Tc in sea water was ca. 1·10−4 Bq/l around Japan. Among the seaweeds (brown algae), Ishige okamurai showed the highest concentration of 5.8·10−2 Bq/kg wet tissue and the highest concentration factor of 583. The level of99Tc in the organic rich surface soil was ca. 1 Bq/kg dry soil in Fukuoka.
Similar content being viewed by others
References
W. SEELMAN-EGGEBERT, G. PFENNIG, H. MÜNZEL, Chart of the Nuclides, Gersbach Verlag, München, 1974.
E. BROWNE, R. B. FIRESTONE, Table of Radioactive Isotopes, John Wiley and Sons, New York, 1986.
B. T. KENNA, P. K. KURODA, J. Inorg. Nucl. Chem., 23 (1961) 142.
F. LUYKS, Technetium in the Environment, Elsevier Applied Science Publishers, London, 1986.
T. M. BEASLEY, J. J. GONOR, H. V. LORZ, Mar. Envir. Res., 7 (1982) 103.
K. YOSHIHARA, T. OMORI, T. SEKINE, Radioisotopes, 33 (1984) 569.
K. H. LIESER, CH. BAUSCHER, Radiochim. Acta, 42 (1987) 205.
E. A. BONDIETTI, C. W. FRANCIS, Science, 203 (1979) 1337.
J. P. RILEY, S. A. SIDDIQUI, Anal. Chim. Acta 139 (1982) 167.
E. HOLM, J. RIOSECO, S. MATTSSON, Technetium in the Environment, Elsevier Applied Science Publishers, London, 1986.
M. ATTREP, J. A. ENOCHS, L. D. BROZ, Environ. Sci. Technol., 5 (1971) 344.
N. W. GOLCHERT, J. SEDLET, Anal. Chem., 41 (1969) 669.
E. ANDERS, The Radiochemistry of Technetium, National Academy of Science, National Research Council, USA, 1960.
E. HOLM, J. RIOSECO, M. GARCIA-LEON, Nucl. Instrum. Methods Phys. Res., 223 (1984) 204.
J. H. KAYE, J. A. MERRILL, R. R. KINNISON, M. S. RAPIDS, N. E. BALLOU, Anal. Chem., 54 (1982) 1158.
M. MASSON, G. APROSI, A. LANIECE, P. GUEGUENIAT, Y. BELOT, Impacts of Radionuclide Releases into the Marine Environment, IAEA, Vienna, 1981.
R. J. PENTREATH, D. F. JEFFERIES, M. D. LOVETT, D. M. NELSON, Marine Radioecology, Organization for Economic Cooperation and Development (OECD) 3rd NEA Seminar, Paris, 1980.
R. J. PENTREATH, Impacts of Radionuclide Releases into the Marine Environment, IAEA, Vienna, 1981.
L. JEANMARIE, M. MASSON, F. PATTI, P. GERMAIN, L. CAPPELLIN, Mar. Poll. Bull., 12 (1981) 29.
T. M. BEASLEY, H. V. LORZ, J. J. GONOR, Health Phys., 43 (1982) 501.
S. TOPCUOGLU, S. W. FOWLER, Mar. Envir. Res., 12 (1984) 25.
D. A. CATALDO, R. E. WILDUNG, T. R. GARLAND, US DOE Rept., CONF-760429, 1978.
M. OTSUJI, R. SEKI, N. IKEDA, Radioisotopes, 36 (1987) 473.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Matsuoka, N., Umata, T., Okamura, M. et al. Determination of technetium-99 from the aspect of environmental radioactivity. Journal of Radioanalytical and Nuclear Chemistry, Articles 140, 57–73 (1990). https://doi.org/10.1007/BF02037364
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF02037364