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Determination of alkaline earths by ion-exchange

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Summary

An ion-exchange method for magnesium, calcium, strontium and barium determination in mixtures containing up to 6 meq. each of them is presented. The separation of (Mg + Ca)-Sr-Ba is performed on a column filled with Dowex 50 W, X-8 by 0.6 M ammonium glycolate-0.2 M NaCl, pH 5 and 1.2 M ammonium glycolate-0.4 M NaCl, pH 5 as eluents. Calcium is separated from magnesium by precipitation as oxalate and determined by titration with permanganate. Magnesium is isolated as magnesium ammonium phosphate and determined acidimetrically. Strontium and barium are precipitated as carbonates and then weighed or determined by EDTA titration. The errors of determination do not exceed ± 2%.

Zusammenfassung

Ein Ionenaustauscherverfahren für die Bestimmung von Magnesium, Calcium, Strontium und Barium in Mengen bis zu 6 mÄq im Gemisch wird vorgeschlagen. Die Trennung von (Mg + Ca)-Sr-Ba wird an einer mit Dowex 50 W, X-8 gefüllten Säule mit 0,6 M Ammoniumglykolat — 0,2 M NaCl, pH 5, und 1,2 M Ammoniumglykolat — 0,4 M NaCl, pH 5 als Elutionsmittel durchgeführt. Calcium wird von Magnesium durch Oxalatfällung abgetrennt und manganometrisch bestimmt. Magnesium wird als Magnesiumammoniumphosphat isoliert und acidimetrisch bestimmt. Strontium und Barium werden als Carbonate gefällt und dann durch Wägen oder mit ÄDTA titrimetrisch bestimmt. Die Fehler überschreiten nicht ± 2%.

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References

  1. Chariot, G.: Les méthodes de la chimie analytique (analyse quantitative minérale), p. 650, 654, 774, 777. Paris: Masson & Cie. 1961.

    Google Scholar 

  2. Herrmann, R., and C. T. J. Alkemade: Chemical analysis by flame photometry. New York: Interscience 1963.

    Google Scholar 

  3. Hillebrand, W. F., G. E. F. Lundell, H. A. Bright, and J. I. Hoffman: Applied inorganic analysis (with special reference to the analysis of metals, minerals, and rocks), p. 644. New York: John Wiley & Sons, Inc. 1953.

    Google Scholar 

  4. Komplexometrische Bestimmungsmethoden mit Titriplex, 3. Auflage. Darmstadt: E. Merck A.G.

  5. Mazza, L., L. Sardo, and R. Frache: Gazz. Chim. Ital. 95, 599 (1965).

    CAS  Google Scholar 

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Authors and Affiliations

  1. Nuclear Institute „J. Stefan“, Ljubljana and Department of Mining and Metallurgy, The University of Ljubljana, Yugoslavia

    M. Senegačnik, Š. Paljk & J. Korošin

Authors
  1. M. Senegačnik
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  2. Š. Paljk
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  3. J. Korošin
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Senegačnik, M., Paljk, Š. & Korošin, J. Determination of alkaline earths by ion-exchange. Z. Anal. Chem. 244, 365–367 (1969). https://doi.org/10.1007/BF00536920

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  • DOI: https://doi.org/10.1007/BF00536920

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