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Eine photometrisehe Methode zur Bestimmung kleinster Jodmengen in Tellur und anderen Materialien

A photometric method for the determination of very small amounts of iodine in tellurium and other materials

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Zusammenfassung

Zur photometrischen Bestimmung von Jod in Tellur und anderen Materialien im ppm-Bereich ist die Reaktion von Jod mit Mercaptobenzthiazol bei Anwesenheit von Bis-benzthiazolyl-(2)-disulfid und Acetonitril geeignet. Für den dabei entstehenden Molekülkomplex wird ein Extinktionskoeffizientɛ c = 1,3 · 104 bei 400 nm berechnet. Darüber hinaus wird der Bildungsmechanismus dieses Komplexes diskutiert.

Summary

The reaction of iodine with mercaptobenzthiazol in the presence of bisbenzthiazolyl-(2)-disulfide and acetonitrile is suitable for the photometric determination of iodine in tellurium and other substances in the ppm range. An extinction coefficientɛ c =1.3 · 104 at 400 nm has been calculated for the molecular complex produced. In addition, the formation mechanism of this complex is discussed.

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Authors and Affiliations

  1. Sektion Physik, Humboldt-Universität Berlin, Bereich 03 Experimentelle Halbleiterphysik, 104 Berlin

    R. v. Kujawa

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  1. R. v. Kujawa
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Kujawa, R.v. Eine photometrisehe Methode zur Bestimmung kleinster Jodmengen in Tellur und anderen Materialien. Mikrochim Acta 57, 193–197 (1969). https://doi.org/10.1007/BF01216683

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  • DOI: https://doi.org/10.1007/BF01216683

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