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Polarographische Untersuchung der Substitutionsreduktion des Kupfer(II)-äthylenglykol-bis-(2-aminoäthyläther)-N,N,N′,N′-tetraacetat-Chelats in Gegenwart von Calciumion und Anwendung zur Calciumbestimmung neben Magnesium

Polarographic study on the substitution reduction of copper(II)-ethyleneglycol-bis-(2-aminoethylether)-N,N,N′,N′-tetraacetate chelate in the presence of calcium ion and its application to the determination of calcium in the presence of magnesium

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Summary

Calcium ion facilitates the reduction of copper(II)-ethyleneglycol-bis-(2-aminoethylether)-N,N,N′,N′-tetraacetate chelate and provokes a new wave at a more positive potential. The properties of the reduction wave and the electrode process are investigated. The method is successfully applied to the determination of calcium in the presence of magnesium up to a ratio of Ca∶Mg=1∶10.

Zusammenfassung

Calcium erleichtert die Reduktion des Kupfer(II)-äthylenglykol-bis-(2-aminoäthyläther)-N,N,N′,N′-tetraacetat-Chelats und gibt eine neue Welle bei positiverem Potential. Die Eigenschaften der Reduktionswelle und der Elektrodenvorgang werden untersucht. Die Methode wird erfolgreich auf die Calciumbestimmung in Gegenwart von Magnesium angewandt, wobei das Verhältnis Ca∶Mg bis 1∶10 betragen darf.

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Author notes

  1. A. R. Rajput

    Present address: Kohinoor Battery Manufacturers Ltd., F/70-A, S. I. T. E., Karachi-3, Pakistan

Authors and Affiliations

  1. Chemisches Institut der naturwissenschaftlichen Fakultät der Hokkaido-Universität, 060, Sapporo, Japan

    A. R. Rajput, M. Sugawara & T. Kambara

Authors
  1. A. R. Rajput
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  2. M. Sugawara
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  3. T. Kambara
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Rajput, A.R., Sugawara, M. & Kambara, T. Polarographische Untersuchung der Substitutionsreduktion des Kupfer(II)-äthylenglykol-bis-(2-aminoäthyläther)-N,N,N′,N′-tetraacetat-Chelats in Gegenwart von Calciumion und Anwendung zur Calciumbestimmung neben Magnesium. Z. Anal. Chem. 289, 275–278 (1978). https://doi.org/10.1007/BF00440210

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  • DOI: https://doi.org/10.1007/BF00440210

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