Analytical Sciences
Online ISSN : 1348-2246
Print ISSN : 0910-6340
ISSN-L : 0910-6340
Specular Reflection Studies on the Adsorption of Quaternary Ammonium Ions, Alcohols and Flavin Mononucleotide on a Glassy Carbon Electrode Surface
Fumiyo KUSUKouichi YUASAKiyoko TAKAMURA
Author information
JOURNALS FREE ACCESS

1993 Volume 9 Issue 5 Pages 583-587

Details
Abstract

The adsorption of quaternary ammonium ions, alcohols and FMN (flavin mononucleotide) on the surface of a glassy carbon electrode was examined by the specular reflection method. Reflectivity on the R/R0-E curve of the electrode with 0.1mol dm-3 NaClO4 decreased gradually with increase in applied potential. This decrease can be explained as due to the formation of chemically adsorbed oxygen. With increase in the molecular size of quaternary ammonium ions and alcohols, decrease in R/R0 occurs in a progressively wider potential region at lower concentrations. FMN in oxidized form is adsorbed on the glassy carbon electrode. This method is useful for assessing the adsorption of electroinactive and electroactive substances usually present in HPLC samples or mobile phases.

Information related to the author
© The Japan Society for Analytical Chemistry
Previous article Next article
feedback
Top