ELECTRODE MODIFICATION BY LONG-CHAIN, DIALKYL DISULFIDE REAGENT HAVING TERMINAL DINITROPHENYL GROUP AND ITS APPLICATION TO IMPEDIMETRIC IMMUNOSENSORS

被引：38

作者：

TAIRA, H ^{[1
]}

NAKANO, K ^{[1
]}

MAEDA, M ^{[1
]}

TAKAGI, M ^{[1
]}

机构：

[1] KYUSHU UNIV,COLL GEN EDUC,CHEM LAB,FUKUOKA 812,JAPAN

来源：

ANALYTICAL SCIENCES | 1993年 / 9卷 / 02期

关键词：

BIFUNCTIONAL ALKANETHIOL; CHEMISORPTION; SELF-ASSEMBLED MONOLAYER; MODIFIED GOLD ELECTRODE; IMPEDIMETRIC IMMUNOSENSOR;

D O I：

10.2116/analsci.9.199

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A long-chain, dialkyl disulfide having a terminal dinitrophenyl (DNP) group was newly synthesized for modification of a surface of gold with chemisorbed, self-assembled organic monolayers. The resulting monolayer was characterized by infrared spectroscopy of reflection absorption spectroscopy mode, by cyclic voltammetric measurement and by electrical impedance measurement. Coupled with impedance measurements, a possible application of the modified electrode system to impedimetric immunosensors was demonstrated. The sensor gave electrical response to anti-DNP antibody at 10 - 10(3) ng cm-3 concentration.

引用

页码：199 / 206

页数：8

共 20 条

[1]

Bard A. J., 2001, ELECTROCHEMICAL METH, V2nd, P50

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