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  • 1985-1989  (2)
Material
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Journal of radioanalytical and nuclear chemistry 120 (1988), S. 75-82 
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract A procedure for platinum and gold determination utilizing, neutron activation combined with radiochemical separation, has been developed. The reaction198Pt (n, ′γ)199 $$Pt\xrightarrow{\beta }$$ is used for Pt determination. Four procedures for gold separation are examined: (1) adsorption on untreated polyurethane foam (UPF). (2) extraction with dibutyl sulphide. (3) reduction of gold to elementary state in conc. H2SO4, and extraction of gold as diethyldithiocarbamate complex. The extraction with Cu(DDC)2 is chosen as the most suitable process and applied to platinum and gold determinations in Bowen's Kale and mice organs, previously treated with Biocisplatinum® specimens.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Acta Polymerica 40 (1989), S. 609-613 
    ISSN: 0323-7648
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Triethanolammonium salts of nitrosulfonic acids (TEA-I) based on nitro-oligomers of polyisoprene rubber and triethanolammonium hydrogen sulfite were obtained. The reaction was carried out in an aqueous dioxane medium at pH = 6 to 7 and T = 40 to 80°C for 4 to 8 h. The TEA-I yield depends on the pH of the medium, the temperature, the duration of the process and the purity of triethanolamine. TEA-I posses surface-active properties. They were tested as brightening agents in sulfate cadmium electrolytes.
    Notes: Synthetisiert wurden Triethanolammoniumsalze von Nitrosulfonsäuren (TEA-I) auf der Grundlage von Nitrooligomeren aus Polyisoprenkautschuk und Triethanolammoniumhydrogensulfit. Die Umsetzung erfolgte in Wasser/Dioxan bei pH = 6 bis 7, T = 40 bis 80°C und einer Kontaktdauer von 4 bis 8 h. Die TEA-I-Ausbeute hängt vom pH-Wert des Mediums, der Temperatur, der Kontaktdauer und dem Reinheitsgrad des Triethanolamins ab. Die TEA-I haben oberflächenaktive Eigenschaften. Sie wurden auf ihre Einsatzfähigkeit als Glanzbildner in Sulfat-Cadmium-Elektrolyten getestet.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
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