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  • 1
    Electronic Resource
    Electronic Resource
    Manganese-54 and Zinc-65 in Coastal Organisms of California (1963)
    [s.l.] : Nature Publishing Group
    Nature 200 (1963), S. 327-329 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IT has been estimated1 that 855 curies of zinc-65 enter the Pacific each day at the mouth of the Columbia River along with other nuclides arising from activation of cooling water constituents at Hanford. Osterberg2'3 and others1 have reported extensively on concentrations of zinc-65 in marine ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/200327a0
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  • 2
    Electronic Resource
    Electronic Resource
    Plutonium in the Marine Environment (1964)
    [s.l.] : Nature Publishing Group
    Nature 203 (1964), S. 568-571 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] PLUTONIUM-239 and -240 have been separated from sea water by radiochemical techniques and measured by use of an alpha spectrometer; 239,240pu has also been found to be highly concentrated in marine organisms. In addition, plutonium-238 has been detected in some of these organisms. The significance ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/203568a0
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  • 3
    Electronic Resource
    Electronic Resource
    Determination of plutonium and americium in environmental samples and assessment of thorium in bone samples from normal and high background areas (1987)
    Springer
    Journal of radioanalytical and nuclear chemistry 115 (1987), S. 217-229 
    Details
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract The procedures developed and standardised for estimation of ultra trace quantities of Pu and Am in environmental samples involve matrix dependent sample preparation, preconcentration of the nuclides by coprecipitation on iron hydroxide and or bismuth phosphate, ion exchange, electrodeposition and counting by alpha spectrometry. Isotopic analysis of Th in chicken bone using oxalate precipitation, ion exchange, electrodeposition and alpha spectrometry has indicated higher build up of228Th in chicken bone from monazite areas possibly from metabolized228Ra.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02037439
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  • 4
    Electronic Resource
    Electronic Resource
    Studies on speciation of transuranics in the environment (1990)
    Springer
    Journal of radioanalytical and nuclear chemistry 138 (1990), S. 93-101 
    Details
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract The study of physico-chemical and biotic processes in the environment is essential to understanding the behavior of transuranic nuclides and to assess their environmental impact. Dialysis, ion exchange, and co-precipitation techniques have been used to study speciation. The dissolved fraction of239,240Pu in coastal waters of Bombay harbor bay and in interstitial water from bottom sediments of the bay were found to be associated with organic matter. The desorption of Pu from sediments in coastal waters is influenced by salinity and carbonate. Studies indicate that, even from anoxic sediments, remobilization and the potential for migration is not significant.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02049351
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  • 5
    Electronic Resource
    Electronic Resource
    Modes of137Cs desorption from marine sediments by sea water (1994)
    Springer
    Journal of radioanalytical and nuclear chemistry 187 (1994), S. 207-214 
    Details
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Sea water is observed to be a good desorbing agent for137Cs from marine sediments. Investigations on the sites of137Cs binding and their abundance by desorption over extended periods indicated that, whatever the time of contact of sorption,137Cs has three modes of desorption: fast component with desorption half-time of 30–50 min, medium component with desorption half-time of 25–50 h and slow component with desorption half-time of 31–112 days. These are expected to be sites of ion exchange, slower exchange and trapped Cs in the clay mineral layer lattices.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02166507
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  • 6
    Electronic Resource
    Electronic Resource
    Influence of major cations of sea water on the desorption of137Cs from marine sediments (1994)
    Springer
    Journal of radioanalytical and nuclear chemistry 187 (1994), S. 197-205 
    Details
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Desorption studies of137Cs from marine sediments by artificial sea water and artificial sea water devoid of individual major cations such as Na, K, Ca, Mg and Sr indicated that only Na and K were effective in the desorption of137Cs. Studies with various ionic strengths ranginf from 0.01 to 1.6M KCl and NaCl solutions showed that KCl desorbs constantly about 45%137Cs at and above an ionic strength of 0.1. In case of NaCl, the percent desorption increases linearly with ionic strength. The difference in desorption by K and Na is attributed to the contraction of the clay mineral layers by K ion and expansion of the layers by Na ion.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02166506
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  • 7
    Electronic Resource
    Electronic Resource
    129I in soil and grass samples around a nuclear reprocessing plant (1991)
    Springer
    Journal of radioanalytical and nuclear chemistry 155 (1991), S. 115-127 
    Details
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Neutron activation analysis was used to determine129I in soil and grass samples around a reprocessing plant. The method involved wet oxidation of samples, using chromic acid, followed by distillation, collection of iodine in alkaline solution, loading on Dowex-1, irradiation and post-irradiation purification steps. The γ-activity of130I isotope of the purified samples was measured for quantitative determination of129I. The experimental results showed that129I and the129I/127I atomic ratio in soil samples varied from 1.09×10−4 to 5.33×10−3 pCi g−1 and 0.10×10−6 to 6.12×10−6, respectively. Further, the geometric mean of soil-to-plant transfer factor (Bv) for129I was found to be 0.16 which was comparable with other published values.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02165065
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  • 8
    Electronic Resource
    Electronic Resource
    Simultaneous determination of232Th and238U in biological samples. Application to the estimation of their daily intake through diet (1992)
    Springer
    Journal of radioanalytical and nuclear chemistry 162 (1992), S. 163-169 
    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 method employing neutron activation and radiochemical separation was developed for simultaneous determination of the concentrations of232Th(Th) and238U(U) in biological materials. Using this method, it is possible to detect 0.05 and 0.2 ng of Th and U, respectively, in the samples. This method was applied to determine the daily dietary intake of these two nuclides by the population living in the high background areas of India (Monazite area), where the soil contains very high levels of these two nuclides. The comparison of the daily intakes by the population living in high and normal background areas showed significantly higher intake of these two nuclides by the high background population.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02039937
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  • 9
    Electronic Resource
    Electronic Resource
    Geochemical association of plutonium in sediments of the Trombay coastal environment (1992)
    Springer
    Journal of radioanalytical and nuclear chemistry 156 (1992), S. 119-127 
    Details
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Geochemical association of plutonium in the coastal environment of Trombay has been studied. A sequential leaching method was employed for chemical partitioning of plutonium in sediments. The results show that 95±15% of plutonium was extracted by different leaching reagents out of which 85±14% was associated with organic matter and hydrous oxide and 9±4% with residual fraction. The presence of significant fraction of Pu bound with organic matter of the sediment is an important factor in determining the extent to which an element becomes available to bottom feeding biota and so enters the aquatic food chain.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02037428
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  • 10
    Electronic Resource
    Electronic Resource
    Book review (1997)
    Springer
    Water, air & soil pollution 97 (1997), S. 443-444 
    Details
    ISSN: 1573-2932
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02407478
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