Results 201 to 210 of about 33,700 (259)
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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
W C, Eckelman, S M, Levenson
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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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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, W C, Haxton
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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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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 ...
J R, Thornback, A E, Theobald
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Technetium, the missing element
European Journal of Nuclear Medicine, 1996The history of the discovery of technetium is reviewed within the framework of the discovery and production of artificial radioactivity in the twentieth century. Important elements of this history are the accidental production of this element in a cyclotron in Berkeley, California, USA, a machine devised by Ernest Orlando Lawrence, and its subsequent ...
F A, de Jonge, E K, Pauwels
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Technetium Complexes with Triazacyclononane
Inorganic Chemistry, 2006[NBu4][TcOCl4] reacts with ethylene glycol and 1,4,7-triazacyclononane (tacn) in MeOH under the formation of the deep-blue oxotechnetium(V) cation [TcO(OC2H4O)(tacn)]+, which can readily be oxidized by air to give the stable technetium(VII) compound [TcO3(tacn)]+.
Henrik, Braband, Ulrich, Abram
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Seminars in Nuclear Medicine, 1974
The detection of a number of impurities in 99m Tc effluents from 99 Mo generators is important for proper use of the generator systems. Their identification is described in this review. Technetium in sulfur colloid is probably present as Tc 2 S 7 .
J, Steigman, P, Richards
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The detection of a number of impurities in 99m Tc effluents from 99 Mo generators is important for proper use of the generator systems. Their identification is described in this review. Technetium in sulfur colloid is probably present as Tc 2 S 7 .
J, Steigman, P, Richards
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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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International Journal of Radiation Applications and Instrumentation. Part A. Applied Radiation and Isotopes, 1986
The chemistry of the technetium-sulfur colloid produced by the reaction of sodium thiosulfate with acid was investigated. A commercial kit was duplicated, and analyses of elemental sulfur, bisulfite and residual thiosulfate were carried out. The colloidal dispersions were filtered through Nuclepore graded membranes, and the percentages of sulfur and of
J, Steigman, N A, Solomon, L L, Hwang
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The chemistry of the technetium-sulfur colloid produced by the reaction of sodium thiosulfate with acid was investigated. A commercial kit was duplicated, and analyses of elemental sulfur, bisulfite and residual thiosulfate were carried out. The colloidal dispersions were filtered through Nuclepore graded membranes, and the percentages of sulfur and of
J, Steigman, N A, Solomon, L L, Hwang
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