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Journal of Environmental Radioactivity, 2004
Iodine is an important trace element in geological and biological processes. We summarize here recent results and new data of experiments and observations carried out to improve the understanding of concentration levels and behavior of natural and anthropogenic iodine nuclides in the global environment.
Yasuyuki, Muramatsu +4 more
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Iodine is an important trace element in geological and biological processes. We summarize here recent results and new data of experiments and observations carried out to improve the understanding of concentration levels and behavior of natural and anthropogenic iodine nuclides in the global environment.
Yasuyuki, Muramatsu +4 more
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The preparation of carrier-free iodine isotope-substituted cytosine nucleotides
Biochimica et Biophysica Acta (BBA) - Nucleic Acids and Protein Synthesis, 1974Abstract Cytosine nucleotide triphosphates can be iodinated with carrier-free iodine isotopes and separated from the parent compounds yielding products which have a 75 times ( 125 I) or 550 times ( 131 I) higher specific activity than commercially available tritium-labeled nucleotides.
N H, Scherberg, S, Refetoff
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Determination of iodine in organic iodine compounds by the non-equilibrium isotopic exchange method
Journal of Radioanalytical Chemistry, 1977A new type of the isotope exchange method of analysis is proposed. The method can be applied to the exchange system in which the rate of the exchange reaction is rather slow but measurable, before the exchange equilibrium is attained. The validity of the principle of the method is verified experimentally with several exchange systems of RyI+KI*⇌RyI*+KI
N. Ikeda, Y. Takahashi
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A review of groundwater iodine mobilization, and application of isotopes in high iodine groundwater
Environmental Geochemistry and HealthExcessive intake of iodine will do harm to human health. In recent years, high iodine groundwater has become a global concern after high arsenic and high fluorine groundwater. A deep understanding of the environmental factors affecting iodine accumulation in groundwater and the mechanism of migration and transformation is the scientific prerequisite ...
Yulu, Zheng +5 more
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Iodine isotopes in radiation hygiene.
Journal of hygiene, epidemiology, microbiology, and immunology, 1980Radioactive isotopes of iodine rank among the factors of anthropogenic contamination of the biosphere. The review presents a radiation-hygienic survey of literary data and the author's own results of studies of the metabolism and biological effect of radioactive isotopes of iodine. The risk of their intake by human organism is evaluated.
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Isotopic analysis of iodine using negative surface ionization
International Journal of Mass Spectrometry and Ion Physics, 1982Abstract Negative surface ionization (NSI) of iodine has been studied on a series of low work function surfaces with the intent of developing improved methods for isotopic analysis, particularly at the environmental level (127/129=10 4 -10 8 ). The most promising method gives 1% ionization/transmission efficiency without measurable tailing from the ...
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Kinetic Isotope Effect in the Iodination of Aromatic Amines
Nature, 1958WE have determined the kinetic isotope effect in the iodination of many aromatic amines, amino-carbonic and aminosulphonic acids by comparing the iodination-rates of normal and deutero-compounds. The results are collected in Table 1, the isotope effect being the ratio of iodination-rate constants, k H and k D of normal and deuterated compounds without ...
E. SHILOV, F. WEINSTEIN
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Simple labeling of ω-phenylfatty acids by iodine isotope exchange
The International Journal of Applied Radiation and Isotopes, 1982Within 1 h 15-(p-iodophenyl)-pentadecanoic acid (p-IPPA) can easily be labeled with 123I by iodine-isotope exchange. In contrast to the electrophilic aromatic substitution procedure this method enables a 95% radiochemical yield. The so formed p-123IPPA can be used without the application of any complicated separation techniques.
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Radioactive Isotopes of Iodine
Physical Review, 1938J. J. Livingood, G. T. Seaborg
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