The role of oxygen functionalities and edge plane sites on screen-printed carbon electrodes for simultaneous determination of dopamine, uric acid and ascorbic acid

被引：147

作者：

Prasad, K. Sudhakara ^{[1
]}

Muthuraman, Govindan ^{[1
]}

Zen, Jyh-Myng ^{[1
]}

机构：

[1] Natl Chung Hsing Univ, Dept Chem, Taichung 402, Taiwan

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2008年 / 10卷 / 04期

关键词：

preanodization; oxygen plasma; screen-printed electrode; dopamine; uric acid; ascorbic acid;

D O I：

10.1016/j.elecom.2008.01.033

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The role of oxygen functionalities and edge plane sites on disposable screen-printed carbon electrodes (SPCE) was evaluated for simultaneous determination of dopamine, uric acid and ascorbic acid in this study. Both electrochemically preanodized and oxygen plasma treated SPCEs were adopted for the purpose of partially differentiating these two effects. Raman and XPS analyses verify that different treatment can indeed induce different surface characteristics. The electrocatalytic activity thereby increases by the substantial increase in surface bound carbon-oxygen functional groups and/or the generation of edge plane sites through surface reorientation. Possible mechanism is proposed to explain the voltammetric behavior. The peaks for dopamine, uric acid and ascorbic acid are especially well-resolved from each other at the electrochemically preanodized SPCE and simultaneous detection at neutral pH can thus be obtained by this simple approach. (c) 2008 Elsevier B.V. All rights reserved.

引用

页码：559 / 563

页数：5

共 27 条

[1] New electrodes for old: from carbon nanotubes to edge plane pyrolytic graphite [J].

Banks, CE ;

Compton, RG .

ANALYST, 2006, 131 (01) :15-21

[2] Oxygen plasma modification of pitch-based isotropic carbon fibres [J].

Boudou, JP ;

Paredes, JI ;

Cuesta, A ;

Martínez-Alonso, A ;

Tascón, JMD .

CARBON, 2003, 41 (01) :41-56

[3] An enzymeless electrochemical sensor for the selective determination of creatinine in human urine [J].

Chen, JC ;

Kumar, AS ;

Chung, HH ;

Chien, SH ;

Kuo, MC ;

Zen, JM .

SENSORS AND ACTUATORS B-CHEMICAL, 2006, 115 (01) :473-480

[4] A disposable single-use electrochemical sensor for the detection of uric acid in human whole blood [J].

Chen, JC ;

Chung, HH ;

Hsu, CT ;

Tsai, DM ;

Kumar, AS ;

Zen, JM .

SENSORS AND ACTUATORS B-CHEMICAL, 2005, 110 (02) :364-369

[5] Demonstration of the importance of oxygenated species at the ends of carbon nanotubes for their favourable electrochemical properties [J].

Chou, A ;

Böcking, T ;

Singh, NK ;

Gooding, JJ .

CHEMICAL COMMUNICATIONS, 2005, (07) :842-844

[6]

Dryhurst G., 1977, ELECTROCHEMISTRY BIO

[7] INTRODUCTION OF FUNCTIONAL-GROUPS ONTO CARBON ELECTRODES VIA TREATMENT WITH RADIO-FREQUENCY PLASMAS [J].

EVANS, JF ;

KUWANA, T .

ANALYTICAL CHEMISTRY, 1979, 51 (03) :358-365

[8] Radio-frequency plasma functionalization of carbon nanotubes surface O2, NH3, and CF4 treatments -: art. no. 074308 [J].

Felten, A ;

Bittencourt, C ;

Pireaux, JJ ;

Van Lier, G ;

Charlier, JC .

JOURNAL OF APPLIED PHYSICS, 2005, 98 (07)

[9] EFFECT OF CHEMISORBED OXYGEN ON THE ELECTROCHEMICAL-BEHAVIOR OF GRAPHITE FIBERS [J].

FRYSZ, CA ;

SHUI, XP ;

CHUNG, DDL .

CARBON, 1994, 32 (08) :1499-1505

[10] Simultaneous determination of dopamine, uric acid and ascorbic acid at an ultrathin film modified gold electrode [J].

Gao, ZQ ;

Huang, H .

CHEMICAL COMMUNICATIONS, 1998, (19) :2107-2108

← 1 2 3 →