Results 181 to 190 of about 224,394 (231)
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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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The energy levels of iodine isotopes in the unified model
Nuclear Physics, 1962Abstract Energy levels of I127 and I129 isotopes are calculated on the basis of the unified model. Agreement with observed levels is obtained for I129, but there are discrepancies in the case of I127.
B. Banerjee, K.K. Gupta
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Measurements on electromagnetically separated radioactive isotopes of iodine
Journal of Inorganic and Nuclear Chemistry, 1957Abstract The mass range 124–135 of iodine isotopes formed in 170 MeV proton-induced fission of uranium has been studied using an electromagnetic isotope separator to prepare mass-determined samples for Geiger-Muller counting. Relative formation cross-sections are given for the shielded nuclides: 12·6 hr 130I (1·0), 25 min 128I (0·7), 13 day 126I (0·4)
P. Aagaard +3 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 exchange between methyl iodide and iodine
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science, 19591. We have developed a method for the separation of I2 from CH3I based on the adsorption of iodine vapor on silver. 2. In the 30–45° temperature range the isotopic exchange between CH3l*and I2 proceeds on the walls of the reaction vessel. 3. Addition of oxygen has no effect on the rate of isotopic exchange.
V. B. Miller +2 more
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Radioactive Isotopes of Iodine
Physical Review, 1938J. J. Livingood, G. T. Seaborg
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Isotopic Exchange Reactions with Iodine
The Journal of Chemical Physics, 1935F. Juliusburger, B. Topley, J. Weiss
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