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Titrimetric determination of iodide, hexacyanoferrate(ii), thiourea, cationic surfactants, and of picrate with a picrate ion-selective electrode

Maßanalytische Bestimmung von Jodid, Hexacyanoferrat(II), Thioharnstoff, kanonischen Schaummitteln und von Pikrat mit einer pikrationenselektiven Elektrode

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Summary

Methods have been developed for the semiautomatic potentiometric precipitation titration of iodide, hexacyanoferrate(II), sulfide, and sulfide-thiourea mixtures with silver nitrate, of medically important quaternary ammonium compounds with sodium picrate, and of picrate ions with tetraphenylarsonium chloride, using a picrate ion-selective electrode. Semimicro and/or microamounts of these substances were determined with relative errors and relative standard deviations of 1–2%.

Zusammenfassung

Methoden zur halbautomatischen Fällungstitration von Jodid, Hexacyanoferrat (II), Sulfid und Sulfid-Thioharnstoff-Gemischen mit Silbernitrat sowie von medizinisch bedeutenden quartären Ammoniumverbindungen mit Natriumpikrat und von Pikrationen mit Tetraphenylarsoniumchlorid unter Verwendung einer pikrationenselektiven Elektrode wurden beschrieben. Halbmikro- bzw. Mikromengen der genannten Stoffe wurden mit einem rel. Fehler und einer rel. Standardabweichung von 1–2% bestimmt.

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Authors and Affiliations

  1. Laboratory of Analytical Chemistry, University of Athens, Athens, Greece

    E. P. Diamandis & T. P. Hadjiioannou

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  1. E. P. Diamandis
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  2. T. P. Hadjiioannou
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Diamandis, E.P., Hadjiioannou, T.P. Titrimetric determination of iodide, hexacyanoferrate(ii), thiourea, cationic surfactants, and of picrate with a picrate ion-selective electrode. Mikrochim Acta 74, 27–38 (1980). https://doi.org/10.1007/BF01196483

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  • DOI: https://doi.org/10.1007/BF01196483

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