The Study of Thermodyna mic Cons ant ΔGr , ΔSr and ΔHr ortho – Qui none and Azid ion by Cycli c Voltam metry me thod

The sta ndard electrode poten tial is a v ery important Parameter in bioch emistry, a nalytical chemistry, etc [۱]. In our previous work , we reported calculations of the standard electrode potenti al for a car bonyl comp ound. The electroche mical beha vior of O-quinone (o – Q) and azid io n. The voltammetric da ta on the oxidation of ۱ mM o - Quinone (o – Q) in the absence of azide ion, in aq ueous solution containing ۰.۲ M phosphate buffer at p H ۶.۵ with a glass carbon electrod are shown in fig. ۱ . Th ese data describe a c hemically reversible oxidation process, as follows from sim ilarly sized peaks of the forwar d and reve rse scans, with an oxidati on peak potential (Eo x) of ۰.۱۵۹V and a r eduction pe ak potenti al (Ered) of ۰.۰۹ V versus saturated calomel ele ctrode. The conditiona l potential Eof = (Eox + Ered)/۲ [۲] were calculated as follo ws:(...)

کلیدواژه ها:

AZIDION ، cyclicvoltammetry ، o-quinone ، thermodynamic constant