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Potentiometric microdetermination of catechol in the presence of its isomers using a lead-ion selective electrode

Potentiometrische Mikrobestimmung von Brenzcatechin in Gegenwart seiner Isomeren mit Hilfe einer blei-spezifischen Elektrode

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Summary

Catechol was determined on the microscale by potentiometric titration with lead nitrate. Solutions were buffered to pH 9.5 with borate buffer. Emf's were monitored with a lead ion-selective electrode and a single junction reference electrode. Up to an eightfold excess of hydroquinone or resorcinol can be tolerated.

Zusammenfassung

Mikromengen Brenzcatechin wurden mit Bleinitrat potentiometrisch titriert. Die Lösungen wurden mit Borat auf pH 9,5 gepuffert. Die EMK wurde mit einer blei-spezifischen Elektrode gemessen. Hydrochinon und Resorcin stören bis zum achtfachen Überschuß nicht.

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Authors and Affiliations

  1. Lawrence Livermore National Laboratory, University of California, Livermore, Calif., USA

    Walter Selig

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  1. Walter Selig
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Additional information

Work performed under the auspices of the U. S. Department of Energy by the Lawrence Livermore Laboratory under Contract W-7405-Eng-48.

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Selig, W. Potentiometric microdetermination of catechol in the presence of its isomers using a lead-ion selective electrode. Mikrochim Acta 78, 141–147 (1982). https://doi.org/10.1007/BF01206700

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  • DOI: https://doi.org/10.1007/BF01206700

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