Results 171 to 180 of about 224,394 (231)
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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.
Seigo Amachi +2 more
exaly +3 more sources
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.
Seigo Amachi +2 more
exaly +3 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
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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
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BIOLOGICAL EFFECTS OF 131I AND 125I ISOTOPES OF IODINE IN THE RAT
Journal of Endocrinology, 1976SUMMARY From the differences in radiation profiles between 131I and 125I isotopes of iodine it would be expected that they would show different effects on thyroid function. The differences should lead to lower rates of thyroid gland destruction with 125I and hence less post-irradiation hypothyroidism.
I, Doniach, D J, Shale
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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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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
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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
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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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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
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Journal of Radiological Protection
Abstract Administering stable iodine is an effective strategy to protect the thyroid in case of an accidental release of radioiodines. 131 I is the most concerning iodine isotope due to its amount in the reactor vessel and its relatively long half-life.
D Broggio +3 more
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Abstract Administering stable iodine is an effective strategy to protect the thyroid in case of an accidental release of radioiodines. 131 I is the most concerning iodine isotope due to its amount in the reactor vessel and its relatively long half-life.
D Broggio +3 more
openaire +1 more source