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  • 1985-1989  (5)
Source
Material
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    A sensitive method for the determination of tritium in urine (1986)
    Springer
    Journal of radioanalytical and nuclear chemistry 107 (1986), S. 353-359 
    Details
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract An analytical procedure was developed for the determination of tritium in urine. The content of contaminants in urine after treatment is reduced markedly so that no influence is expected on tritium measurements by a liquid scintillation counter. The established analytical procedure was successfully applied for urine from the general public in Japan.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02164200
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Tritium concentrations of the deep sea-water in the Japan Sea and the Pacific Ocean (1988)
    Springer
    Journal of radioanalytical and nuclear chemistry 127 (1988), S. 447-456 
    Details
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Tritium concentrations were determined for sea-water samples collected from the Japan Sea and the Pacific Ocean. In the Japan Sea, it was recognized that tritium was distributed around 2000 m in depth. This means that the vertical mixing of water mass is taking place. On the other hand, in the Pacific Ocean, the tritium concentration appears to reach zero at about 1000 m although more than 1 TU concentration are detected for samples collected from deeper water. Hypothetical origins of tritium in the deep water in the Pacific Ocean are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02166772
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Recent environmental tritium levels in Japan-II Coastal seawater and lake water (1986)
    Springer
    Journal of radioanalytical and nuclear chemistry 104 (1986), S. 141-150 
    Details
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Tritium concentrations were analyzed for coastal seawater and lake water collected from various places in Japan. Low tritium concentrations were observed for coastal seawater of small islands and it was attributed to a short residence time of the ground-water in such a small island. Tritium concentrations in lake water showed a significant variation. And it was revealed that the size of the lake and its drainage area were the dominant factors controlling the tritium concentrations in lakes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02163257
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Radionuclide concentrations in several seaweeds and their annual variations (1986)
    Springer
    Journal of radioanalytical and nuclear chemistry 99 (1986), S. 367-377 
    Details
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract To examine the radionuclide concentrations in the environment, seaweeds were collected once a year since 1976 at two different places. A marked change was observed in the number of radionuclides in seaweeds. The increase of radionuclides is attributed to contamination by radioactive fallout from Chinese nuclear explosion tests. The radionuclide concentrations were strongly dependent on the species of seaweeds. A gradual decrease of the137Cs/40K activity ratio was observed in spite of the input of additional137Cs fallout from Chinese nuclear tests. This implies that the amounts of137Cs introduced into seawater by these detonations were small in comparison with those already contained in seawater. The cesium content in seawater was estimated by using specific activities of137Cs in seaweeds and137Cs concentration in seawater. The results show good agreement with the reported values by direct analysis of seawater.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02037597
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    An improved apparatus for the determination of krypton-85 and xenon-133 in an emergency situation (1988)
    Springer
    Journal of radioanalytical and nuclear chemistry 120 (1988), S. 21-27 
    Details
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract A simple and portable apparatus was developed for measurements of85Kr and133Xe that would be released into the atmosphere in an emergency situation of nuclear facilities. The method is based on cryogenic adsorption of these gases on charcoal followed by chromatographic separation from other gases. The85Kr and133Xe recovered from atmospheric air are determined separately by liquid scintillation counting. It takes about 1 hour for the stepwise determination of85Kr and133Xe. The atmospheric concentration of 3·10−3 μCi per m3 air (1.1·102 Bq/m3 air) is measurable for both nuclides with 20% counting error.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02037847
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    Paper (German National Licenses)
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