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Coulometric determination of organic substances using electrogenerated dipositive silver

Coulometrische Bestimmung von organischen Substanzen mit Hilfe von elektrolytisch erzeugtem zweiwertigem Silber

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Zusammenfassung

Der verwendete Elektrolyt besteht aus 0,1 M Silbernitrat in 5 M Salpetersäure bei −10°C. Die Generatoranode besteht aus Gold (Stromdichte 1,5–5 mA/cm2). Die Bestimmung des Endpunkts erfolgt potentiometrisch (Pt/SKE) oder biamperometrisch (Pt-Elektroden, 200 mV). Für die potentiometrische Bestimmung wird die Indicatorelektrode mit einer Lösung von AgO in Salpetersäure oder durch elektrochemische Anodisierung vorbehandelt. Folgende Substanzen wurden bis herab in den sub-Milligramm-Bereich mit Fehlern von 1–2% titriert: Isoniazid, Oxalyldihydrazid, Hydrochinon, Resorcin.

Summary

Conditions are described for the efficient generation of silver(II) and the titration of organic compounds by electrogenerated silver(II). An electrolyte of 0.1 M silver nitrate and 5 M nitric acid at −10°C is used, with a gold generating anode and a current density of 1.5–5 mA/cm2. A potentiometric (platinum-S.C.E. pair) or biamperometric (platinum electrodes, 200 mV) end point detection is used. For potentiometric detection, the platinum electrode is preconditioned with AgO in nitric or by anodization. The compounds isoniazid, oxalyldihydrazide, hydroquinone, and resorcinol were titrated down to sub-milligram quantities with errors of 1–2%.

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References

  1. Davis, D. G., Jr.: Ph. D. thesis, Harvard University, 1957

  2. Davis, D. G., Lingane, J. J.: Anal. Chim. Acta18, 245 (1958)

    Google Scholar 

  3. Lingane, J. J.: Electroanalytical Chemistry, 2nd Ed. New York: Intersci. 1958

    Google Scholar 

  4. Lingane, J. J., Davis, D. G.: Anal. Chim. Acta15, 207 (1956)

    Google Scholar 

  5. Meir, D. J., Swift, E. H.: J. Am. Chem. Soc.72, 5337 (1950)

    Google Scholar 

  6. Noyes, A. A., Coryell, C. D., Stilt, F., Kossiakoff, A.: J. Am. Chem. Soc.59, 1316 (1937)

    Google Scholar 

  7. Noyes, A. A., Devault, D., Coryell, C. D., Deahl, T. J.: J. Am. Chem. Soc.59, 1326 (1937)

    Google Scholar 

  8. Noyes, A. A., Hoard, J. L., Pitzer, K. S.: J. Am. Chem. Soc.57, 1221 (1935)

    Google Scholar 

  9. Patriarche, G. J., Lingane, J. J.: Anal. Chem.39, 168 (1967)

    Google Scholar 

  10. Patriarche, G. J., Lingane, J. J.: Anal. Chim. Acta49, 25 (1970)

    Google Scholar 

Download references

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Authors and Affiliations

  1. Institut de Pharmacie, Université Libre de Bruxelles, Campus Plaine Bd. du Triomphe, PO Box: 205/1, B-1050, Bruxelles, Belgium

    M. Chateau-Gosselin & G. J. Patriarche

  2. Department of Chemistry, University of Washington, 98195, Seattle, Washington, USA

    G. D. Christian

Authors
  1. M. Chateau-Gosselin
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  2. G. J. Patriarche
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  3. G. D. Christian
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Chateau-Gosselin, M., Patriarche, G.J. & Christian, G.D. Coulometric determination of organic substances using electrogenerated dipositive silver. Z. Anal. Chem. 285, 373–376 (1977). https://doi.org/10.1007/BF00561165

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  • DOI: https://doi.org/10.1007/BF00561165

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