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  • Articles: DFG German National Licenses  (1)
  • 1965-1969  (1)
  • 1967  (1)
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  • Articles: DFG German National Licenses  (1)
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  • 1965-1969  (1)
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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Fresenius' Zeitschrift für analytische Chemie 230 (1967), S. 107-111 
    ISSN: 1618-2650
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Zur spektrophotometrischen Bestimmung von Zirkonium wird als Reagens Robinetin empfohlen, das mit Zr einen Komplex im Verhältnis 1∶2 (Zr∶Robinetin) bildet. Die Stabilitätskonstante wurde zu 1,5 · 109 bestimmt. Das Beersche Gesetz wird bis zu 3,0 ppm Zr befolgt. In stark Salzsauren Lösungen ist die Reaktion empfindlich und selektiv (Empfindlichkeit: 0,0045 μg Zr/cm2).
    Notes: Summary The complex formation between zirconium and robinetin has been spectrophotometrically investigated and made use of in the determination of zirconium. The complex has been found to contain zirconium and the flavonol in the molar ratio of 1∶2. It obeys Beer's law up to 3.0 ppm of Zr and its stability constant has been calculated to be l.5×109. The reaction is quite sensitive and selective at high concentrations of hydrochloric acid (sensitivity 0.0045 μg/cm2).
    Type of Medium: Electronic Resource
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