Results 221 to 230 of about 62,820 (266)
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Technetium-99m-Ethylenediamine: A new cationic complex of technetium
The International Journal of Applied Radiation and Isotopes, 1981Abstract Reaction of 99 m Tc-pertechnetate with 1,2-diaminoethane) in the presence of Sn(II) appears to give a single cationic species. At pH 9–10 the complex is stable for greater than 20 h and for greater than 1 h at pH 4–11. Biodistribution studies show that the complex is partially bound to serum protein and the main blood clearance is via ...
A.E. Theobald, J.R. Thornback
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Radiopharmaceuticals labelled with Technetium
The International Journal of Applied Radiation and Isotopes, 1977Abstract The ready availability and ideal nuclear properties of 99mTc has led to its widespread use for imaging purposes. In general the localization of the present radiopharmaceuticals is based on the ability of an organ to remove foreign substances from the blood. Further application of this ideal nuclide seems related to the development of methods
Stanley M. Levenson, W. C. Eckelman
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Nature Chemistry, 2009
The story of the last element to be discovered out of the first 92 catalogued in the periodic table is told by Eric Scerri, who reminds us that technetium can be found a little closer to home than many of us might think.
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The story of the last element to be discovered out of the first 92 catalogued in the periodic table is told by Eric Scerri, who reminds us that technetium can be found a little closer to home than many of us might think.
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Technetium Tetrachloride as A Precursor for Small Technetium(IV) Complexes
Inorganic Chemistry, 2006Polymeric technetium tetrachloride reacts with monodentate donor ligands such as THF, acetonitrile, DMSO, thioxane (1-oxa-4-thiacyclohexane), PMe2Ph, PPh3, OPPh3, or OH2 via cleavage of the polymeric network and the formation of [TcCl4(L)2] complexes.
Adelheid Hagenbach +2 more
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Journal of Inorganic and Nuclear Chemistry, 1964
Abstract A sample of African pitchblende was found to contain between 2·5–3·1 × 10−10 g of 99Tc per kilogram ore, but no other technetium isotopes were detected. The 99Tc/238U ratio in pitchblende was about the same as the 99Mo/238U ration in nonirradiated uranium. The experimental results suggest that the 99Tc is produced in the ore predominantly by
B.T. Kenna, P.K. Kuroda
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Abstract A sample of African pitchblende was found to contain between 2·5–3·1 × 10−10 g of 99Tc per kilogram ore, but no other technetium isotopes were detected. The 99Tc/238U ratio in pitchblende was about the same as the 99Mo/238U ration in nonirradiated uranium. The experimental results suggest that the 99Tc is produced in the ore predominantly by
B.T. Kenna, P.K. Kuroda
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Solar Neutrino Production of Technetium-97 and Technetium-98
Science, 1982It may be possible to determine the boron-8 solar neutrino flux, averaged over the past several million years, from the concentration of technetium-98 in molybdenite. The mass spectrometry of this system is greatly simplified by the absence of stable technetium isotopes, and the presence of the fission product technetium-99 provides a monitor of ...
G. A. Cowan, Wick Haxton
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Manganese, technetium and rhenium
Annual Reports Section "A" (Inorganic Chemistry), 2006AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
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The composition and structure of technetium nitride and technetium borides
Journal of the Less Common Metals, 1964Analysis of Tc heated in nitrogen in the temperature range 400 -900 deg C revealed no change in the lattice constants of the metal. When heated in ammonia in the range 7001100 deg C, lattice constants increased to an extent depending on the amount of nitrogen absorbed.
W. Trzebiatowski, J. Rudzinski
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