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Hydrogen ion-selective electrode based on an iron-hydroxo-complex

Wasserstoffionen-selektive Elektrode auf Basis eines Eisen-Hydroxo-Komplexes

  • Original Papers
  • Ion-selective Elecktrodes
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Zusammenfassung

Die Membran der vorgeschlagenen ionen-selektiven Elektrode besteht aus einem Eisen(III)-hydroxokomplex, dem Membran-Lösungsmittel und Polyvinylchlorid. Mit 1-Decanol als günstigstem Lösungsmittel ergab sich eine lineare Anzeige von pH 0 bis 5 mit einer Potentialänderung von 56 mV/pH. Die Charakteristik der vorgeschlagenen Elektrode wird beschrieben und der Ansprechmechanismus diskutiert.

Summary

A new hydrogen ion-selective based on an iron hydroxo complex was proposed. The ion sensing membrane was composed of the iron(III) hydroxo complex, membrane solvent and polyvinyl chloride. The proposed electrode using 1-decanol as the most favourable solvent showed a linear pH-response from 0 to 5 with a potential change of 56 mV per pH-unit. The characteristics of the proposed electrode and a discussion on the response mechanism are reported.

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Authors and Affiliations

  1. Government Industrial Research Institute Osaka, Midorigaoka 1-8-31, 563, Ikeda City, Osaka Pref., Japan

    Shin-ichi Wakida, Takashi Tanaka, Akinori Kawahara & Kazuo Hiiro

Authors
  1. Shin-ichi Wakida
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  2. Takashi Tanaka
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  3. Akinori Kawahara
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  4. Kazuo Hiiro
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Wakida, Si., Tanaka, T., Kawahara, A. et al. Hydrogen ion-selective electrode based on an iron-hydroxo-complex. Z. Anal. Chem. 323, 142–144 (1986). https://doi.org/10.1007/BF01172906

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  • DOI: https://doi.org/10.1007/BF01172906

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