Simultaneous electrochemical detection of the catecholamines and ascorbic acid at PEDOT/S-β-CD modified gold electrodes

被引：25
作者：
Colleran, John J. [1 ]
Breslin, Carmel B. [1 ]
机构：
[1] NUI, Dept Chem, Maynooth, Kildare, Ireland
来源：
JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 2012年 / 667卷
关键词：
PEDOT; Sulfonated-beta-CD; Dopamine; Ascorbic acid; Simultaneous detection; Tumour diagnosis; PERFORMANCE LIQUID-CHROMATOGRAPHY; INDUCED FLUORESCENCE DETECTION; MODIFIED POLY(PHENYLENEDIAMINE)-COATED ELECTRODES; CAPILLARY ZONE ELECTROPHORESIS; HOST-GUEST COMPLEXATION; GLASSY-CARBON ELECTRODE; IN-VIVO; URINARY CATECHOLAMINES; NANOCOMPOSITE PLATFORM; SELECTIVE DETECTION;
D O I：
10.1016/j.jelechem.2011.12.020
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Poly (3,4-ethylene dioxythiophene)/sulphated beta-cyclodextrin (PEDOT/S-beta-CD) films, deposited onto gold working electrodes, were investigated for ascorbic acid (AA) and catecholamine detection using cyclic voltammetry, hydrodynamic voltammetry and amperometry. The thin PEDOT/S-beta-CD films were fabricated via three electropolymerisation cyclic voltammetry cycles, on gold working macroelectrodes. A limit of detection (LoD) of 1.3 x 10(-7) M was determined at PEDOT/S-beta-CD modified gold electrodes, via cyclic voltammetry, for dopamine (DA) in the presence of 1 x 10(-3) M of AA in human urine samples. (C) 2011 Elsevier B.V. All rights reserved.
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收藏
页码：30 / 37
页数：8
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