Preparation of poly(thionine) modified screen-printed carbon electrode and its application to determine NADH in flow injection analysis system

被引：121

作者：

Gao, Q ^{[1
]}

Cui, XQ ^{[1
]}

Yang, F ^{[1
]}

Ma, Y ^{[1
]}

Yang, XR ^{[1
]}

机构：

[1] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Electroanalyt Chem, Changchun 130022, Jilin, Peoples R China

来源：

BIOSENSORS & BIOELECTRONICS | 2003年 / 19卷 / 03期

基金：

中国国家自然科学基金;

关键词：

electropolymerization; thionine; NADH; screen-printed carbon electrode; FIA;

D O I：

10.1016/S0956-5663(03)00212-4

中图分类号：

Q6 [生物物理学];

学科分类号：

071011 ;

摘要：

A poly(thionine) modified screen-printed carbon electrode has been prepared by an electrooxidative polymerization of thionine in neutral phosphate buffer. The modified electrodes are found to give stable and reproducible electrocatlytic responses to NADH and exhibit good stability. Several techniques, including cyclic voltammetry, X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM), have been employed to characterize the poly(thionine) film. Further, the modified screen-printed carbon electrode was found to be promising as an amperometric detector for the flow injection analysis (FIA) of NADH, typically with a dynamic range of 5-100 muM. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：277 / 282

页数：6

共 34 条

[1] THIONINE COATED ELECTRODE FOR PHOTOGALVANIC CELLS [J].