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Spot detection of cerium and cobalt

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Summary

Sulphosalicylic acid reacts with cerium(IV) at pH 11±0.5 to give a redbrown complex. With cerium(III) the reaction proceeds only slowly but is markedly accelerated in the presence of cobalt(II). 0.7 μg of cerium, and based on its catalytic action, 0.03 μg of cobalt can be detected on a spot plate.

Zusammenfassung

Sulfosalicylsäure bildet mit Cer(IV) bei pH 11±0,5 einen rotbraun gefärbten Komplex. Mit Cer(III) verläuft die Reaktion nur langsam, wird aber durch Gegenwart von Kobalt(II) beschleunigt. Noch 0,7 μg Ce und — auf Grund der Katalyse — 0,03 μg Co können auf der Tüpfelplatte nachgewiesen werden.

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Authors and Affiliations

  1. Department of Chemistry, Andhra University, Waltair, India

    V. Pandu Ranga Rao & D. Satyaharayana

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  1. V. Pandu Ranga Rao
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  2. D. Satyaharayana
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Rao, V.P.R., Satyaharayana, D. Spot detection of cerium and cobalt. Z. Anal. Chem. 197, 409–412 (1963). https://doi.org/10.1007/BF00489319

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  • DOI: https://doi.org/10.1007/BF00489319

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