STUDY OF ELECTROCHEMICAL BEHAVIOR OF COMPLEXING COMPOUNDS USING COPPER ELECTRODE

被引：10

作者：

Coutinho, Claudia F. B. ^{[1
]}

Coutinho, Lincoln F. M. ^{[1
]}

Mazo, Luiz H. ^{[1
]}

机构：

[1] Univ Sao Paulo, Inst Quim Sao Carlos, BR-13560970 Sao Carlos, SP, Brazil

来源：

QUIMICA NOVA | 2009年 / 32卷 / 01期

关键词：

copper electrode; complexing compounds; electrochemical sensor; PERFORMANCE LIQUID-CHROMATOGRAPHY; AMPEROMETRIC DETECTION; AMINO-ACIDS; ELECTROCATALYTIC RESPONSE; COULOMETRIC DETECTION; ALLOY ELECTRODES; OXIDE FORMATION; GLYPHOSATE; MICROELECTRODE; DISSOLUTION;

D O I：

10.1590/S0100-40422009000100038

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Copper electrode can be used for determination of complexing compounds through complexation reactions between Cu(II) and the analites. In this work some studies with three compounds were performed: glycine (precursor of glyphosate synthesis), herbicide glyphosate and aminomethylphosphonic acid (main metabolite of glyphosate). These compounds are complexing agents for Cu electrodes. Through simple experiments (cyclic voltammetry and corrosion studies) the applicability of the copper electrode as electrochemical sensor for complexing compounds in flow systems was presented.

引用

页码：228 / U247

页数：7

共 37 条

[1] COPPER(II) COMPLEXES WITH ASPARTATE AND GLUTAMATE [J].

BOTTARI, E ;

FESTA, MR ;

JASIONOWSKA, R .

POLYHEDRON, 1989, 8 (08) :1019-1027

[2] Multilayer hydrous oxide growth on copper in base and its correlation with previously reported electrocatalytic data for this electrode system [J].

Burke, LD ;

Murphy, MA .

JOURNAL OF SOLID STATE ELECTROCHEMISTRY, 2001, 5 (01) :43-49

[3] The importance of the active states of surface atoms with regard to the electrocatalytic behaviour of metal electrodes in aqueous media [J].

Burke, LD ;

Collins, JA ;

Horgan, MA ;

Hurley, LM ;

O'Mullane, AP .

ELECTROCHIMICA ACTA, 2000, 45 (25-26) :4127-4134

[4] Redox and electrocatalytic activity of copper in base at unusually low, premonolayer potentials [J].

Burke, LD ;

Collins, JA ;

Murphy, MA .

JOURNAL OF SOLID STATE ELECTROCHEMISTRY, 1999, 4 (01) :34-41

[5] The electrochemical behaviour of copper in sodium salicylate aqueous solutions [J].

Cascalheira, AC ;

Abrantes, LM .

ELECTROCHIMICA ACTA, 2004, 49 (27) :5023-5028

[6] Applications of a copper-modified gold electrode for amperometric detection of polar aliphatic compounds by anion-exchange chromatography [J].

Casella, IG ;

Gatta, M ;

Desimoni, E .

JOURNAL OF CHROMATOGRAPHY A, 1998, 814 (1-2) :63-70

[7] Potentiometric detection of aliphatic amines by flow injection analysis and ion-interaction chromatography with a metallic copper electrode [J].

Chen, ZL ;

Alexander, PW .

JOURNAL OF CHROMATOGRAPHY A, 1997, 758 (02) :227-233

[8] Investigation of copper dissolution in the presence of glyphosate using hydrodynamic voltammetry and chronoamperometry [J].

Coutinho, C. F. B. ;

Silva, M. O. ;

Calegaro, M. L. ;

Machado, S. A. S. ;

Mazo, L. H. .

SOLID STATE IONICS, 2007, 178 (1-2) :161-164

[9] Influence of glyphosate on the copper dissolution in phosphate buffer [J].

Coutinho, C. F. B. ;

Silva, M. O. ;

Machado, S. A. S. ;

Mazo, L. H. .

APPLIED SURFACE SCIENCE, 2007, 253 (06) :3270-3275

[10]

COUTINHO CFB, COMMUNICATION

← 1 2 3 4 →