In this study, simple, fast and reliable cyclic voltammetry, linear sweep voltammetry, square wave voltammetry and differential pulse voltammetry methods were developed and validated for determination of etodolac in pharmaceutical preparations. The proposed methods were based on electrochemical oxidation of etodolac at platinum electrode in acetonitrile solution containing 0.1 M lithium perchlo...

Gold and glassy carbon electrode surfaces were modified with L-cysteine, the electrochemical behavior of ascorbic acid (AA) was investigated on these new surfaces. To improve efficiency electrodes, optimum conditions for AA determination established. Electrochemical experiments performed at different potential ranges, concentration AA, scan rates, number polymerization cycles pH values. Using c...

The aim of this work is to highlight the beneficial impact nucleation mode study on controlling electrodeposition a metal substrate, in order form high sensitivity bimetallic electrodes. Actually, optimizing operating conditions allows generating largest active surface, and so, increasing electrode sensitivity. For purpose, phenomena initial growth copper nuclei gold, platinum stainless steel 3...

Glycated albumin (GA) has been previously introduced as a promising biomarker for glycemic monitoring in diabetes patients with thalassemia. In this study, label-free graphene oxide (GO)-modified aptasensor was developed the rapid detection of GA. The fabrication dependent on covalent interaction amine-functionalized GA-specific aptamer carboxylic groups GO. Square wave voltammetry (SWV) analys...

This study describes two polyphenols, caffeic acid (CA) and (+)-catechin, as well their antioxidant effects, detected by cyclic voltammetry (CV) using an electrochemical deoxyribonucleic (DNA)-based biosensor in sage tea. Square-wave (SWV) was applied to investigate CA, one of the derivatives phenolic acids, a representative flavonoids, voltammograms (SWVs) CA showed peak (0.197 V) presence ano...

Thymus is regarded as one of the medicinal species, which according to obtained chromatograms of floral water of Thymus; one of the main components is thymol as strong antioxidant. In this study the appropriate and physically powerful correlation was found between the anti-radical and oxidation potentials. The antioxidant activity of the Thymus was measured by using square wave and cyclic volta...

Sensitive, real-time detection of biomarkers is of critical importance for rapid and accurate diagnosis of disease for point of care (POC) technologies. Current methods do not allow for POC applications due to several limitations, including sophisticated instrumentation, high reagent consumption, limited multiplexing capability, and cost. Here, we report a nanocoaxial-based electrochemical sens...

Herein, a complete study of the electrochemical behavior most commonly used tetracycline antibiotics (TCs) on unmodified carbon screen-printed electrodes (SPEs) is presented. In addition, oxidation pathway TCs SPE elucidated, for first time, with liquid chromatography-quadrupole time-of-flight mass spectrometry (LC-QTOF-MS). Square wave voltammetry (SWV) was to fingerprint (EF) shaping differen...