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  • 1965-1969  (1)
  • 1890-1899
  • 1965  (1)
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  • 1965-1969  (1)
  • 1890-1899
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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Fresenius' Zeitschrift für analytische Chemie 207 (1965), S. 188-192 
    ISSN: 1618-2650
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Summary The use of tri-n-butyl phosphate for the extraction of small amounts of iron and cobalt from a neutral thiocyanate containing aqueous phase results in stable, colour-intensive solutions which permit a simultaneous sensitive photometric determination of these elements in high-purity nickel and nickel salts. The limits of detection of the procedure in 10 g samples are 3 · 10−6 % Fe and 2 · 10−5 % Co. The relative standard deviations are lower than 5%.
    Notes: Zusammenfassung Die Verwendung von Tri-n-butylphosphat zur Extraktion kleiner Eisen- und Kobaltgehalte aus neutraler thiocyanathaltiger wäßriger Phase führt zu beständigen, farbintensiven Lösungen, die eine gleichzeitige empfindliche photometrische Bestimmung dieser Elemente in Reinstnickel und Reinstnickelsalzen ermöglichen. Die Nachweisgrenzen des Verfahrens liegen für die von uns angewandten 10 g-Einwaagen bei 3 · 10−6 % Fe bzw. 2 · 10−5 % Co. Die relativen Standardabweichungen sind kleiner als 5%.
    Type of Medium: Electronic Resource
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