Kinetics of the alizarine red S surface redox reaction

被引：0
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作者：
KomorskyLovric, S
机构：
来源：
FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY | 1996年 / 356卷 / 3-4期
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O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Kinetics of the surface redox reaction of alizarine red S adsorbed on mercury is measured by square-wave voltammetry. In 1 mol/l KNO3 buffered to pH 9.22, the standard reaction rate constant of the redox couple anthraquinone/anthrahydroquinone in the adsorbed alizarine red S molecule is k(s) = 100 +/- 10 s(-1) and the cathodic transfer coefficient is alpha = 0.4. At pH 2 in this medium k(s) is greater than 500 s(-1).
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页码：306 / 309
页数：4
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