ELECTROCHEMICAL RESPONSE AT MICROARRAY ELECTRODES IN FLOWING STREAMS AND DETERMINATION OF CATECHOLAMINES

被引：91

作者：

AOKI, A ^{[1
]}

MATSUE, T ^{[1
]}

UCHIDA, I ^{[1
]}

机构：

[1] TOHOKU UNIV, FAC ENGN, DEPT MOLEC CHEM & ENGN, AOBA KU, SENDAI, MIYAGI 980, JAPAN

来源：

ANALYTICAL CHEMISTRY | 1990年 / 62卷 / 20期

关键词：

D O I：

10.1021/ac00219a010

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Electrochemical characterization of two microarray electrodes, an interdigltated microarray electrode (IDAE) and a single potential microarray electrode (SAE), was investigated in flowing streams. Amperometric responses at these electrodes were in good agreement with those of theoretical prediction. Compared to a dual-series rectangular electrode (DRE) with the same electrode area, the IDAE showed amplification of current responses by a factor of 2.8-3.9 due to redox cycling. The collection efficiency at IDAE was 0.6, which was higher than that at DRE 0.4. The application of IDAE to the selective determination of reversible species catecholamines in high-performance liquid chromatography was also demonstrated. © 1990, American Chemical Society. All rights reserved.

引用

页码：2206 / 2210

页数：5

共 35 条

[1]

ADAMS RN, 1987, VOLTAMMETRY NEUROSCI, P103

[2] HYDRODYNAMIC VOLTAMMETRY AT AN INTERDIGITATED ELECTRODE ARRAY IN A FLOW CHANNEL .1. NUMERICAL-SIMULATION [J].

ANDERSON, JL ;

OU, TY ;

MOLDOVEANU, S .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1985, 196 (02) :213-226

[3] TIME-DEPENDENCE OF DIFFUSION-CONTROLLED CURRENTS OF A SOLUBLE REDOX COUPLE AT INTERDIGITATED MICROARRAY ELECTRODES [J].

AOKI, K ;

TANAKA, M .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1989, 266 (01) :11-20

[4] QUANTITATIVE-ANALYSIS OF REVERSIBLE DIFFUSION-CONTROLLED CURRENTS OF REDOX SOLUBLE SPECIES AT INTERDIGITATED ARRAY ELECTRODES UNDER STEADY-STATE CONDITIONS [J].

AOKI, K ;

MORITA, M ;

NIWA, O ;

TABEI, H .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1988, 256 (02) :269-282

[5] HYDRODYNAMIC VOLTAMMETRY AT CHANNEL ELECTRODES .9. EDGE EFFECTS AT RECTANGULAR CHANNEL FLOW MICROELECTRODES [J].

AOKI, K ;

TOKUDA, K ;

MATSUDA, H .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1987, 217 (01) :33-47

[6] DIGITAL-SIMULATION OF THE MEASURED ELECTROCHEMICAL RESPONSE OF REVERSIBLE REDOX COUPLES AT MICROELECTRODE ARRAYS - CONSEQUENCES ARISING FROM CLOSELY SPACED ULTRAMICROELECTRODES [J].

BARD, AJ ;

CRAYSTON, JA ;

KITTLESEN, GP ;

SHEA, TV ;

WRIGHTON, MS .

ANALYTICAL CHEMISTRY, 1986, 58 (11) :2321-2331

[7] MICROELECTROCHEMICAL TRANSISTORS BASED ON ELECTROSTATIC BINDING OF ELECTROACTIVE METAL-COMPLEXES IN PROTONATED POLY(4-VINYLPYRIDINE) - DEVICES THAT RESPOND TO 2 CHEMICAL STIMULI [J].

BELANGER, D ;

WRIGHTON, MS .

ANALYTICAL CHEMISTRY, 1987, 59 (10) :1426-1432

[8] CALCULATION OF CONVECTIVE DIFFUSION CURRENT AT A STRIP ELECTRODE IN A RECTANGULAR FLOW CHANNEL - INVISCID FLOW [J].

COPE, DK ;

TALLMAN, DE .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1985, 188 (1-2) :21-31

[9] THE LIMITING DIFFUSION CURRENT VALUE ON A MACROSCOPICALLY INHOMOGENEOUS ELECTRODE [J].

FILINOVSKY, VY .

ELECTROCHIMICA ACTA, 1980, 25 (03) :309-314

[10] AMPEROMETRIC RESPONSE OF MICROLITHOGRAPHICALLY FABRICATED MICROELECTRODE ARRAY FLOW SENSORS IN A THIN-LAYER CHANNEL [J].

FOSDICK, LE ;

ANDERSON, JL ;

BAGINSKI, TA ;

JAEGER, RC .

ANALYTICAL CHEMISTRY, 1986, 58 (13) :2750-2756

← 1 2 3 4 →