Re-examination of the adsorption and reduction processes of thiosemicarbazide at a silver electrode: SERS, UV-visible and capillary electrophoresis studies

被引：12

作者：

Andrade, GFS ^{[1
]}

Micke, GA ^{[1
]}

Tavares, MFM ^{[1
]}

Temperini, MLA ^{[1
]}

机构：

[1] Univ Sao Paulo, Inst Quim, Dept Quim Fundamental, BR-05513970 Sao Paulo, Brazil

来源：

JOURNAL OF RAMAN SPECTROSCOPY | 2004年 / 35卷 / 12期

关键词：

thiosemicarbazide; SERS; UV-visible; capillary electrophoresis; adsorption; reduction;

D O I：

10.1002/jrs.1242

中图分类号：

O433 [光谱学];

学科分类号：

0703 [化学]; 070302 [分析化学];

摘要：

The faradaic reduction process of thiosemicarbazide (TSC) on a silver electrode in acidic solution was investigated using surface-enhanced Raman scattering (SERS), UV-visible and capillary electrophoresis. No faradaic reduction product was detected, in disagreement with a previous SERS report. The TSC adsorption process on a silver electrode with different electrolyte anions in neutral solution was also studied by SERS and the change in the relative intensities of the TSC bands with the applied potential is explained based on variations in the TSC adsorbed conformations. Copyright (C) 2004 John Wiley Sons, Ltd.

引用

页码：1034 / 1041

页数：8

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