Differential pulse cathodic stripping voltammetry of the copper complexes of glycyl-L-histidyl-glycine at a hanging mercury drop electrode

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

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The behaviour of the copper complexes of glycyl-L-histidyl-glycine (GHG) was investigated using cyclic voltammetry and differential pulse voltammetry after their adsorptive accumulation on the surface of a hanging mercury drop electrode (HMDE). The nature of the observed cathodic and anodic peaks was established and optimum conditions were found for the differential pulse cathodic stripping voltammetric detemination of GHG at the 1 × 10-8M concentration level using adsorptive accumulation at -0.20 V vs. Ag/AgCl reference electrode and the cathodic stripping peak around -0.4 V (pH 8.3). This peak corresponds to the reduction of the Cu(I)-GHG complex formed at the HMDE surface as an intermediate in the reduction of Cu(II)-GHG to Cu(O)amalgam.

Original languageEnglish
Pages (from-to)1481-1488
Number of pages8
JournalTalanta
Volume40
Issue number10
DOIs
Publication statusPublished - 1 Jan 1993
Externally publishedYes

Fingerprint

Voltammetry
Mercury
Glycine
Copper
Electrodes
Mercury amalgams
Cyclic voltammetry

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Differential pulse cathodic stripping voltammetry of the copper complexes of glycyl-L-histidyl-glycine at a hanging mercury drop electrode. / Ertas, F. Nil; Fogg, Arnold G.; Moreira, Josino C.; Barek, Jiri.

In: Talanta, Vol. 40, No. 10, 01.01.1993, p. 1481-1488.

Research output: Contribution to journalArticle

@article{9ab8ada6034747d38224af8d6f3e6211,
title = "Differential pulse cathodic stripping voltammetry of the copper complexes of glycyl-L-histidyl-glycine at a hanging mercury drop electrode",
abstract = "The behaviour of the copper complexes of glycyl-L-histidyl-glycine (GHG) was investigated using cyclic voltammetry and differential pulse voltammetry after their adsorptive accumulation on the surface of a hanging mercury drop electrode (HMDE). The nature of the observed cathodic and anodic peaks was established and optimum conditions were found for the differential pulse cathodic stripping voltammetric detemination of GHG at the 1 × 10-8M concentration level using adsorptive accumulation at -0.20 V vs. Ag/AgCl reference electrode and the cathodic stripping peak around -0.4 V (pH 8.3). This peak corresponds to the reduction of the Cu(I)-GHG complex formed at the HMDE surface as an intermediate in the reduction of Cu(II)-GHG to Cu(O)amalgam.",
author = "Ertas, {F. Nil} and Fogg, {Arnold G.} and Moreira, {Josino C.} and Jiri Barek",
year = "1993",
month = "1",
day = "1",
doi = "10.1016/0039-9140(93)80357-W",
language = "English",
volume = "40",
pages = "1481--1488",
journal = "Talanta",
issn = "0039-9140",
publisher = "Elsevier",
number = "10",

}

TY - JOUR

T1 - Differential pulse cathodic stripping voltammetry of the copper complexes of glycyl-L-histidyl-glycine at a hanging mercury drop electrode

AU - Ertas, F. Nil

AU - Fogg, Arnold G.

AU - Moreira, Josino C.

AU - Barek, Jiri

PY - 1993/1/1

Y1 - 1993/1/1

N2 - The behaviour of the copper complexes of glycyl-L-histidyl-glycine (GHG) was investigated using cyclic voltammetry and differential pulse voltammetry after their adsorptive accumulation on the surface of a hanging mercury drop electrode (HMDE). The nature of the observed cathodic and anodic peaks was established and optimum conditions were found for the differential pulse cathodic stripping voltammetric detemination of GHG at the 1 × 10-8M concentration level using adsorptive accumulation at -0.20 V vs. Ag/AgCl reference electrode and the cathodic stripping peak around -0.4 V (pH 8.3). This peak corresponds to the reduction of the Cu(I)-GHG complex formed at the HMDE surface as an intermediate in the reduction of Cu(II)-GHG to Cu(O)amalgam.

AB - The behaviour of the copper complexes of glycyl-L-histidyl-glycine (GHG) was investigated using cyclic voltammetry and differential pulse voltammetry after their adsorptive accumulation on the surface of a hanging mercury drop electrode (HMDE). The nature of the observed cathodic and anodic peaks was established and optimum conditions were found for the differential pulse cathodic stripping voltammetric detemination of GHG at the 1 × 10-8M concentration level using adsorptive accumulation at -0.20 V vs. Ag/AgCl reference electrode and the cathodic stripping peak around -0.4 V (pH 8.3). This peak corresponds to the reduction of the Cu(I)-GHG complex formed at the HMDE surface as an intermediate in the reduction of Cu(II)-GHG to Cu(O)amalgam.

UR - http://www.scopus.com/inward/record.url?scp=43949176136&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=43949176136&partnerID=8YFLogxK

U2 - 10.1016/0039-9140(93)80357-W

DO - 10.1016/0039-9140(93)80357-W

M3 - Article

VL - 40

SP - 1481

EP - 1488

JO - Talanta

JF - Talanta

SN - 0039-9140

IS - 10

ER -