Surface layers of 6-thioguanine on the mercury electrode

被引：9
|
作者：
Arias, ZG [1 ]
Alvarez, JLM [1 ]
Fonseca, JML [1 ]
机构：
[1] Univ Oviedo, Dept Quim Fis & Analit, E-33071 Oviedo, Asturias, Spain
来源：
JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2002年 / 250卷 / 02期
关键词：
6-thioguanine; chemical and physical adsorption; condensed monolayers; ac voltammetry; cyclic voltammetry;
D O I：
10.1006/jcis.2002.8339
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The adsorption behavior of 6-thioguanine (6TG) on a hanging mercury drop electrode has been studied with ac and cyclic voltammetry in 0.1 M Na2SO4 and 0.01 M sodium acetate solutions at pH 4.3. Several condensed phases of chemically adsorbed 6TG as well as one phase of physically adsorbed 6TG have been characterized. Under total coverage conditions, the films of chemiadsorbed molecules inhibit rather efficiently the electrode reaction of mercury oxide formation. (C) 2002 Elsevier Science (USA).
引用
收藏
页码：295 / 302
页数：8
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