Differential electrolytic potentiometric determination of caffeine in nonaqueous media

Abdalla M.S. Abdennabi*, Salah M. Sultan

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

The application of direct current differential electrolytic potentiometry (dc DEP) to the titration of caffeine in acetic anhydride‐toluene mixture has been investigated. A very stable low current source has been constructed to polarize the antimony electrodes. The behavior of these electrodes during the titration of caffeine has been examined. Caffeine in commercial samples like tea, Pepsi as a beverage and Prontopyrin, a proprietary drug, was extracted in chloroform and determined by dc DEP.

Original languageEnglish
Pages (from-to)709-712
Number of pages4
JournalElectroanalysis
Volume5
Issue number8
DOIs
StatePublished - Sep 1993

Keywords

  • Antimony electrode
  • Caffeine
  • Electrolytic potentiometry

ASJC Scopus subject areas

  • Analytical Chemistry
  • Electrochemistry

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