Electrochemical pretreatment of glassy carbon electrodes

Surface Improvement of Glassy Carbon Electrode Anodized in Triethylene Glycol and Its Application to Electrochemical HPLC Analysis of Protein-Containing Samples

“…1), leading to enhanced electrochemical performance. 9,[12][13][14][15][16] The present paper describes the resisting ability against adsorption of various In order to improve electrochemical performance of a glassy carbon (GC) electrode anodized in triethylene glycol (TEG), a GC electrode was anodized in H2O prior to TEG anodization. The effect of this pretreatment was evaluated by comparing electrochemical responses of acetaminophen on HPLC using the following electrodes: a GC electrode anodized in both H2O and TEG (double modified GC electrode); an unmodified GC electrode; GC electrodes anodized in either H2O or TEG.…”

Adsorptive Stripping Voltammetric Determination of Azithromycin at a Glassy Carbon Electrode Modified by Electrochemical Oxidation

“…In addition, after such a treatment, the porous film modified the electrode and the effective surface area was increased. 12 Cyclic voltammograms for the oxidation of azithromycin at unmodified and electrochemically activated glassy carbon electrodes in the same solution are shown in Fig. 1.…”

“…Electrode surface modifications and pretreatments have been widely used to improve the electrochemical responses of biological compounds and to construct electrochemical detectors. 12,13 The behavior of carbon electrodes at high positive potentials has received considerable interest owing to a desire to improve both the activity and reproducibility of carbon electrodes for applications using electrochemical detectors for liquid chromatography involving the detection of analytes that oxidize only at extreme positive potentials. 14 The objective of the present work was to develop an adsorptive stripping voltammetric procedure for the determination of azithromycin.…”

Electrochemical Behavior and Determination of Clozapine on a Glassy Carbon Electrode Modified by Electrochemical Oxidation

“…Electrode surface modifications and pretreatments have been widely used to improve the electrochemical responses of biological compounds and to construct electrochemical detectors. 21,22 The behavior of carbon electrodes at high positive potentials has received considerable interest owing to a desire to improve both the activity and the reproducibility of carbon electrodes for applications in electrochemical detectors for liquid chromatography involving the detection of analytes that oxidize only at extreme positive potentials. 23 The objective of the present work was to study of electrochemical behavior of CLZ on an activated GC electrode and to develop an adsorptive stripping voltammetric procedure for the determination of CLZ, with higher sensitivity and reproducibility than the reported ones.…”