Cyclic voltammetry determination of epinephrine with a carbon fiber ultramicroelectrode

被引：106

作者：

Hernandez, P ^{[1
]}

Sanchez, I ^{[1
]}

Paton, F ^{[1
]}

Hernandez, L ^{[1
]}

机构：

[1] Univ Autonoma Madrid, Dept Quim Analit, E-28049 Madrid, Spain

来源：

TALANTA | 1998年 / 46卷 / 05期

关键词：

epinephrine; adrenaline; carbon fiber ultramicroelectrode;

D O I：

10.1016/S0039-9140(97)00353-6

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A carbon fiber ultramicroelectrode was used for the electroanalytical determination of epinephrine in biological fluids (urine) by cyclic voltammetry. The ultramicroelectrode was subjected to an electrochemical pretreatment in order to improve the epinephrine adsorption on the electrode surface. With this preconcentration step, detection limits of 7.8 ng ml(-1) and determination limits of 27.6 ng ml(-1) can be reached. The method was contrasted with native fluorescence determination - similar results were obtained. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：985 / 991

页数：7

共 12 条

[1] COPPER(II), COBALT(II), AND NICKEL(II) COMPLEXES OF VARIOUS ANTIHISTAMINIC COMPOUNDS - THEIR STABILITY AND THERMODYNAMIC VALUES [J].

ANDREWS, AC ;

OBRIEN, TD ;

LYONS, TD .

JOURNAL OF THE CHEMICAL SOCIETY, 1962, (MAY) :1776-&

[2] LINEAR SWEEP VOLTAMMETRY AT VERY SMALL STATIONARY DISK ELECTRODES [J].

AOKI, K ;

AKIMOTO, K ;

TOKUDA, K ;

MATSUDA, H ;

OSTERYOUNG, J .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1984, 171 (1-2) :219-230

[3]

BRUN A, 1974, J ELECTROANAL CHEM, V49, P287, DOI 10.1016/S0022-0728(74)80236-6

[4]

*CHEM SOC, 1971, SPEC PUBL CHEM SOC, V17, P584

[5]

Chicharro M., 1995, J LIQ CHROMATOGR, V18, P117

[6]

GREENE R, 1950, HORMONAS ORG HUMANO, pCH5

[7] Adsorptive stripping determination of indole-3-acetic acid at a carbon fiber ultramicroelectrode [J].

Hernandez, L ;

Hernandez, P ;

Paton, F .

ANALYTICA CHIMICA ACTA, 1996, 327 (02) :117-123

[8]

KAISER H, 1970, ANAL CHEM, V42, pA26, DOI 10.1021/ac60286a027

[9]

KORYTA J, 1987, PRINCIPLES ELECTROCH, P128

[10]

PESCE K, 1990, QUIMICA CLIN METODOS, pCH125

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