Cathodic stripping voltammetric behaviour of copper complexes of glycylgylcyl-l-histidine at a hanging mercury drop electrode. Determination of trace amounts of glycylglycyl-l-histidine

Arnold G. Fogg, F. Nil Ertas, Josino C. Moreira, Jiri Barek

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

The behaviour of copper complexes with glycylglycyl-l-histidine (GGH) was investigated using cyclic voltammetry and adsorptive differential pulse cathodic stripping voltammetry. The nature of the observed cathodic and anodic peaks was established and optimum conditions have been found for the determination of nanomolar levels of GGH by means of differential pulse cathodic stripping voltammetry after accumulation in the presence of excess copper at -0.20 V vs. AgAgCl reference electrode and using the stripping peak around -0.40 V which corresponds to the reduction of the copper(I)-GGH complex.

Original languageEnglish
Pages (from-to)41-51
Number of pages11
JournalAnalytica Chimica Acta
Volume278
Issue number1
DOIs
Publication statusPublished - 6 Jun 1993
Externally publishedYes

Keywords

  • Copper complexes
  • Cyclic voltammetry
  • Glycylglycyl-l-histidine
  • Stripping voltammetry

ASJC Scopus subject areas

  • Analytical Chemistry
  • Environmental Chemistry
  • Biochemistry
  • Spectroscopy

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