Time differential surface plasmon resonance measurements applied for electrochemical analysis

被引：41

作者：

Iwasaki, Y ^{[1
]}

Horiuchi, T ^{[1
]}

Morita, M ^{[1
]}

Niwa, O ^{[1
]}

机构：

[1] NTT Basic Res Labs, Kanagawa 24301, Japan

来源：

ELECTROANALYSIS | 1997年 / 9卷 / 16期

关键词：

surface plasmon resonance; oxide formation; gold electrode;

D O I：

10.1002/elan.1140091604

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The processes of oxide film formation and ion adsorption on gold electrodes were monitored by the simultaneous measurement of electrochemical potential scanning voltammetry and surface plasmon resonance (SPR) condition. The time differential of the SPR incident angle was used for the analysis of the surface reactions of the gold electrode. Each stage of oxide film formation on the sputtered gold electrodes and anion adsorption/desorption was clearly detected by this method and directly correlated to the current. SPR is sensitive to the surface adsorbate while the electrode current reflects the overall electrochemical process. This difference was used to separate adsorption from the diffusion process under different hydrodynamic conditions.

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页码：1239 / 1241

页数：3

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