Preparation and properties of reference electrodes based on silver paste amalgam

Bogdan Yosypchuk, Jiří Barek, Oksana Yosypchuk

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

The preparation and testing of saturated calomel electrodes (SCE-AgPA), mercury-mercurous sulfate (MMSE-AgPA) and mercury-mercuric oxide (MMOE-AgPA) reference electrodes based on silver paste amalgam are described. All three electrodes have shown long-term stability of their potentials (ESCE-AgPA=-0.56±0.34mV; EMMSE-AgPA=391.5±1.4mV; EMMOE-AgPA=-104.9±0.7mV vs. classical SCE; test time was 14months). All paste amalgam electrodes have potentials close to their analogues with metallic mercury. They can therefore replace each other without any recalculation. Peak potentials of anodic dissolution of cadmium measured with the SCE-AgPA and SCE are identical. The greatest resistance to polarization was registered with the SCE-AgPA and significantly lower with other tested electrodes.

Original languageEnglish
Pages (from-to)2226-2231
Number of pages6
JournalElectroanalysis
Volume23
Issue number9
DOIs
Publication statusPublished - 1 Sep 2011
Externally publishedYes

Keywords

  • Electrochemistry
  • Paste amalgams
  • Reference electrodes

ASJC Scopus subject areas

  • Analytical Chemistry
  • Electrochemistry

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