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  • 1985-1989  (4)
  • 1
    ISSN: 1520-510X
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    European journal of nuclear medicine 13 (1987), S. 410-415 
    ISSN: 1619-7089
    Keywords: Heart ; Perfused organs ; 99mTc ; Technetium compounds
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract 99mTc-organocation complexes were screened for heart affinity using the isolated perfused rat heart. The 99mTc-I compounds are better extracted by the heart and retained in it than the 99mTc-III compounds. 99mTcCl2(DMPE) 2 + shows low uptake (15%) and fast washout, but no impairment of uptake after incubation with human serum albumin(HSA), with a modified preparation, initial uptake is not much better (18%) but washout is clearly diminished. 99mTc(DMPE) 3 + is taken up to a greater extent (33%) if administered solely, but when given in conjunction with HSA, uptake decreases to about 4% because of strong affinity of the complex to the protein, but this compound persists well in the tissue. Detergents like tween 80 and dioctylsulphosuccinate are able to cause higher uptake of 99mTc(DMPE) 3 + even in the presence of HSA, thus indicating a diminished binding of the compound to the protein. 99mTc(CN-t-butyl) 6 + shows very high uptake (80%) by the heart, which is only moderately diminished by addition of HSA (t0 38%), and persists excellently in the myocardium. Basic features of the compounds such as accumulation in and elimination from the myocardium as well as plasma protein binding and their mutual relationships are well reflected by the isolated heart model.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Journal of radioanalytical and nuclear chemistry 102 (1986), S. 309-320 
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract A series of technetium complexes with different alkyl dithiocarbamates, dithiophosphates and xanthates has been prepared at tracer level (10−4 molar) starting from hydrazine-reduced pertechnetate and Tc(V) gluconate, respectively. Solution studies show the complexes to be neutral, lipid-soluble tracers. Their in vitro properties can be varied in a wide range by variation of alkyl substitution of the ligands.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Mixed-Ligand Complexes of Technetium. VIII. Synthesis and Characterization of Te Complexes with Mixed Phosphine/Thiol Coordination SphereSynthesis and characterization of mixed-ligand phosphine/thiol technetium complexes are reported. The compounds are formed from pertechnetate, TcO4-, if reduction is carried out by a mixture of the ligands in acidic media. The formation of cationic compounds of general formula or neutral binuclear complexes depends on the acid used. The products have been studied by elemental analysis, IR, UV/visible and 1H NMR spectroscopy as well as by fast atom bombardment mass spectrometry. Cyclovoltammetric studies exhibit a reversible TcIII/TcII redox pair for the cationic complexes.
    Notes: Es wird über die Darstellung von Gemischtligandkomplexen des Technetiums berichtet, deren Koordinationssphäre sich aus Bisphosphinen und Mercaptoliganden zusammensetzt. Die Verbindungen entstehen bei der Reduktion von Pertechnetat, TcO4-, in Gegenwart der Liganden im sauren Medium. In Abhängigkeit von der Säure werden entweder Komplexkationen der allgemeinen Formel oder zweikernige Neutralkomplexe der Form gebildet. Die Produkte wurden mit Hilfe der Elementaranalyse, der IR-, UV/VIS- und 1H-NMR-Spektroskopie sowie mit der FAB-Massenspektrometrie untersucht. Elektrochemische Untersuchungen an den kationischen Komplexen zeigen ein reversibles TcIII/TcII-Redoxpaar.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
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