Amperometric detection of carbohydrates and thiols by using a glassy carbon electrode coated with Co oxide/multi-wall carbon nanotubes catalytic system

被引：52

作者：

Buratti, Susanna ^{[1
]}

Brunetti, Barbara ^{[1
]}

Mannino, Saverio ^{[1
]}

机构：

[1] Univ Milan, Dept Food Sci & Technol, I-20133 Milan, Italy

来源：

TALANTA | 2008年 / 76卷 / 02期

关键词：

carbohydrates; thiols; carbon nanotubes; cobalt oxide; amperometric detection;

D O I：

10.1016/j.talanta.2008.03.031

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A glassy carbon electrode coated with cobalt oxide/multi-wall carbon nanotubes (MWCNT) system was used for the detection of carbohydrates and thiols. The modification of the glassy carbon electrode increased the anodic current response of these organic compounds and decreased their overvoltage. The amperometric responses were extremely stable with no loss of sensitivity over many days of storage. Such attractive performance characteristics indicate great promise for using this new catalytic system for monitoring in fast and simple way compounds of great interest for food industry, biotechnology and clinical diagnostics. (C) 2008 Elsevier B.V. All rights reserved.

引用

收藏

页码：454 / 457

页数：4

相关论文

共 31 条

[21] Glassy carbon electrodes modified with single walled carbon nanotubes and cobalt phthalocyanine and nickel tetrasulfonated phthalocyanine: Highly stable new hybrids with enhanced electrocatalytic performances [J].

Silva, J. Francisco ;

Griveau, Sophie ;

Richard, Cyrille ;

Zagal, Jose H. ;

Bedioui, Fethi .

ELECTROCHEMISTRY COMMUNICATIONS, 2007, 9 (07) :1629-1634

[22] Sinusoidal voltammetry for the analysis of carbohydrates at copper electrodes [J].

Singhal, P ;

Kawagoe, KT ;

Christian, CN ;

Kuhr, WG .

ANALYTICAL CHEMISTRY, 1997, 69 (08) :1662-1668

[23] Sulfhydryl oxidase modified composite electrode for the detection of reduced thiolic compounds [J].

Timur, Suna ;

Odaci, Dilek ;

Dincer, Ayse ;

Zihnioglu, Figen ;

Telefoncu, Azmi ;

Gorton, Lo .

SENSORS AND ACTUATORS B-CHEMICAL, 2007, 125 (01) :234-239

[24] Carbon-nanotube/copper composite electrodes for capillary electrophoresis microchip detection of carbohydrates [J].

Wang, J ;

Chen, G ;

Wang, M ;

Chatrathi, MP .

ANALYST, 2004, 129 (06) :512-515

[25] CATALYTIC-OXIDATION AND FLOW DETECTION OF CARBOHYDRATES AT RUTHENIUM DIOXIDE MODIFIED ELECTRODES [J].

WANG, J ;

TAHA, Z .

ANALYTICAL CHEMISTRY, 1990, 62 (14) :1413-1416

[26] Solubilization of carbon nanotubes by Nafion toward the preparation of amperometric biosensors [J].

Wang, J ;

Musameh, M ;

Lin, YH .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2003, 125 (09) :2408-2409

[27] Immobilization of tetra-tert-butylphthalocyanines on carbon nanotubes:: a first step towards the development of new nanomaterials [J].

Wang, XB ;

Liu, YQ ;

Qiu, WF ;

Zhu, DB .

JOURNAL OF MATERIALS CHEMISTRY, 2002, 12 (06) :1636-1639

[28] Carbon nanotube-modified electrodes for the simultaneous determination of dopamine and ascorbic acid [J].

Wang, ZH ;

Liu, J ;

Liang, QL ;

Wang, YM ;

Luo, G .

ANALYST, 2002, 127 (05) :653-658

[29] Electrochemical biosensing platforms using phthalocyanine-functionalized carbon nanotube electrode [J].

Ye, JS ;

Wen, Y ;

Zhang, WD ;

Cui, HF ;

Xu, GQ ;

Sheu, FS .

ELECTROANALYSIS, 2005, 17 (01) :89-96

[30] Nonenzymatic glucose detection using multi-walled carbon nanotube electrodes [J].

Ye, JS ;

Wen, Y ;

Zhang, WD ;

Gan, LM ;

Xu, GQ ;

Sheu, FS .

ELECTROCHEMISTRY COMMUNICATIONS, 2004, 6 (01) :66-70

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