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Influence ofpH and concentration of complexing agents on fluorescence of samarium(III), gadolinium(III), and terbium(III)—Ethylenediaminetetraacetic acid or nitrilotriacetic acid complexes in aqueous solutions

Einfluβ von pH und Konzentration der Komplexbildner auf die Fluoreszenz der Komplexe von Samarium(III), Gadolinium(III) und Terbium(III) mit Ethylendiamintetraessigsäure und Nitrilotriessigsäure in wäβrigen Lösungen

  • Anorganische Und Physikalische Chemie
  • Published:
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Abstract

The fluorescence intensity of aqueous solutions of Sm(III), Gd(III) and Tb(III) complexes withEDTA orNTA was investigated as a function of complexone concentration over a widepH range. For Sm(III) and Tb(III) complexes the ratio of intensities of hypersensitive and allowed bands was calculated in order to obtain information about intensity borrowing of the fluorescence bands as a result of vibronic coupling.

Zusammenfassung

Die Abhängigkeit der Intensitäten der Fluoreszenzbanden wäßriger Lösungen der Komplexe von Sm(III), Gd(III) und Tb(III) mit Ethylendiamintetraessigsäure und Nitrilotriessigsäure von der Konzentration der Komplexbildner wurde in einem weitenpH-Bereich untersucht. Für die Komplexe des Sm(III) und Tb(III) wurde das Verhältnis der hyperempfindlichen und erlaubten Banden berechnet, um Informationen über geborgte Intensitäten der Fluoreszenzbanden infolge vibronischer Kopplung zu erhalten.

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Authors and Affiliations

  1. Rare Earths Department, Faculty of Chemistry, A. Mickiewicz University, PL-60-780, Poznań, Poland

    Marian Elbanowski, Stefan Lis & Barbara Makowska

Authors
  1. Marian Elbanowski
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  2. Stefan Lis
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  3. Barbara Makowska
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Elbanowski, M., Lis, S. & Makowska, B. Influence ofpH and concentration of complexing agents on fluorescence of samarium(III), gadolinium(III), and terbium(III)—Ethylenediaminetetraacetic acid or nitrilotriacetic acid complexes in aqueous solutions. Monatsh Chem 114, 185–193 (1983). https://doi.org/10.1007/BF00798322

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  • DOI: https://doi.org/10.1007/BF00798322

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