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Catalytic method for determination of micro amounts of gold in iron ores

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Summary

Gold in iron ores has been determined by means of its catalytic action on the oxidation of mercury(I) by cerium(IV). The calibration curve is linear over the range 3–30 ng/ml. Only iridium(IV), platinum(IV), palladium(II), ruthenium(III) and gallium(III) interfere seriously, though some interference is experienced from lead(II), iron(III), osmium(VIII) and indium(III).

Zusammenfassung

Gold wurde in Eisenerzen auf Grund seiner katalytischen Wirkung auf die Oxydation von Quecksilber(II) durch Cer(IV) bestimmt. Die Eichkurve verläuft von 2 bis 30 ng/ml linear. Nur Iridium(IV), Platin(IV), Palladium(II), Ruthenium(III) und Gallium(III) stören ernstlich, während eine geringfügige Störung auch durch Blei(II), Eisen(III), Osmium(VIII) und Indium(III) beobachtet wurde.

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Authors and Affiliations

  1. Department of Analytical Chemistry, Sofia University, Bulgaria

    B. G. Jeliazkowa, P. R. Bontchev & A. A. Alexiev

Authors
  1. B. G. Jeliazkowa
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  2. P. R. Bontchev
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  3. A. A. Alexiev
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Jeliazkowa, B.G., Bontchev, P.R. & Alexiev, A.A. Catalytic method for determination of micro amounts of gold in iron ores. Mikrochim Acta 60, 896–901 (1972). https://doi.org/10.1007/BF01239156

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  • DOI: https://doi.org/10.1007/BF01239156

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