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Kinetics of the alizarine red S surface redox reaction.

作者信息

Komorsky-Lovrić S

机构信息

Center for Marine Research "Rudjer Bosković" Institute, PO Box 1016, 10001, Zagreb, Croatia.

出版信息

Anal Bioanal Chem. 1996 Sep;356(3-4):306-9. doi: 10.1007/s0021663560306.

DOI:10.1007/s0021663560306
PMID:15048375
Abstract

Kinetics of the surface redox reaction of alizarine red S adsorbed on mercury is measured by square-wave voltammetry. In 1 mol/l KNO(3) 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).

摘要

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