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Potentiometrische Bestimmung von Cystein mit Palladium(II)

The determination of cystein by potentiometric titration

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Zusammenfassung

Ein Verfahren zur schnellen Bestimmung von Cystein durch potentiometrische Titration wurde angegeben. Cystein wird mit Palladium(II)chlorid in Acetatpuffer unter Anwendung von Platin als Indikatorelektrode titriert. Dabei entsteht ein stabiler Komplex. Zum Potentialsprung kommt es, wenn das stöchiometrische Verhältnis Pd(II)∶Cystein 1∶2 beträgt. Die Ergebnisse zeigen, daß sich die Methode zur Bestimmung von Cystein in Mikromengen eignet.

Summary

The procedure for rapid determination of cysteine by potentiometric titration is given. Cysteine is titrated with a solution of palladium(II)- chloride in acetate buffer with use of platinum as an indicator electrode. A stable complex has been formed. A significant jump of the potential appears when the stoichiometric ratio of palladium(II) to cysteine is 1∶2. The results show that this method is suitable for the determination of cysteine in micro quantities.

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Literatur

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Authors and Affiliations

  1. Institut für Analytische Chemie und Institut für Anorganische Chemie der Pharmazeutischen Fakultät, Beograd

    B. Stanković, T. Trtica & A. Stefanović

Authors
  1. B. Stanković
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  2. T. Trtica
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  3. A. Stefanović
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Stanković, B., Trtica, T. & Stefanović, A. Potentiometrische Bestimmung von Cystein mit Palladium(II). Mikrochim Acta 78, 333–336 (1982). https://doi.org/10.1007/BF01197982

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  • DOI: https://doi.org/10.1007/BF01197982

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