Surface layers of 6-thioguanine on the mercury electrode.
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.
Arias
Zoraida González
ZG
Departamento de Química-Física y Analítica, Universidad de Oviedo, Oviedo, Asturias, E-33071, Spain.
Alvarez
Jesús Luis Muñiz
JL
Fonseca
Juan Miguel López
JM
D000327:Adsorption; D004563:Electrochemistry / Q000379:methods; D004566:Electrodes; D008628:Mercury / Q000737:chemistry*; D019346:Sodium Acetate / Q000737:chemistry; D013431:Sulfates / Q000737:chemistry; D013499:Surface Properties; D013866:Thioguanine / Q000737:chemistry*
D013431:Sulfates; C012036:sodium sulfate; D019346:Sodium Acetate; D013866:Thioguanine; D008628:Mercury