Results 201 to 210 of about 24,982 (263)
Some of the next articles are maybe not open access.
Isotopic Evidence Unveils Fossil Fuels Contribution to Atmospheric Iodine
Environmental Science & Technology, 2023Iodine is a crucial nutrient for public health, and its presence in the terrestrial atmosphere is a key factor in determining the prevalence of iodine deficiency disorders. While oceanic iodine emissions decrease at lower sea surface temperatures, the primary contributors to atmospheric iodine can vary from oceanic sources in the summer to other ...
Yukun Fan +5 more
openaire +2 more sources
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
openaire +1 more source
Isotopic analysis of iodine by multiphoton ionization
Analytical Chemistry, 1982Multiphoton ionization occurs when ionization follows the absorption of more than one photon by a molecule in the presence of an intense visible or UV light source. As the laser source is tuned to an allowed n-photon transition, the process is greatly enhanced. This is called resonance enhanced multiphoton ionization, REMPI.
David M. Lubman, Richard N. Zare
openaire +1 more source
Microscopic dose distributions due to iodine isotopes in thyroid
Radiation and Environmental Biophysics, 1978Microscopic electron dose distributions inside and outside the colloid spheres of thyroid tissue of radii 15-150 micron containing 1.5 muCi/g 123I, 125I, 131I, and 132I uniformly distributed have been calculated by the application of Berger's scaled absorbed dose functions approximately standard polynomial regression techniques.
A R, Reddy, A, Kaul
openaire +2 more sources
Temporal Variation of Iodine Isotopes in the North Sea
Environmental Science & Technology, 2014Monitoring temporal variability of (129)I in the North Sea, a relatively large reservoir of radioactive discharges from the nuclear fuel reprocessing facilities, is vital for the environmental situation in the region. New information on concentration levels and distribution of (129)I and (127)I and their species forms (iodide and iodate) are gained ...
Peng, He +3 more
openaire +2 more sources
123‐Iodine: a New Isotope for Functional renal Scanning
British Journal of Urology, 1977The results are presented of functional renal scanning in 11 urological patients using 123-iodine labelled Hippuran--a new radiopharmaceutical. The 123-iodine isotope possesses distinct advantages over existing isotopes, permitting high resolution imaging whilst delivering a low integrated radiation dose.
P H, O'Reilly +4 more
openaire +2 more sources
Iodine determination in milk by isotope dilution analysis
Journal of Radioanalytical and Nuclear Chemistry, 2004Iodine is an essential trace element in the human diet. It is utilized in the synthesis of L-monoiodothyrosine, which is a precursor of the thyroid hormones, thyroxin and triiodothyronin. In this study, a method that can determine iodine concentrations in milk has been developed. The method is based on substoichiometric isotope dilution analysis (IDA).
Unak, P +5 more
openaire +2 more sources
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
openaire +1 more source