A thin film of epinephrine (EP) was electrochemically deposited on the surface of glassy carbon electrode previously activated in NaHCO3 solution. The cyclic voltammograms of the modified electrode indicate that the surface confined EP are strongly dependent on the solution pH, as expected for quinone/hydroquinone functionalities. The EP-modified glassy carbon electrode exhibited...

Fabrication and electrochemical characterization of a sensor for the determination of epinephrine (EP), uric acid (UA) and folic acid (FA) is described. The sensor  was prepared using carbon paste electrode (CPE) modified with 3,4-dihydroxybenzaldehyde-2,4-dinitrophenylhydrazone (DDP) and carbon nanotubes (CNTs), which makes the modified electrode highly sensitive for the electrochemical detect...

A simple and selective carbon paste electrode has been developed for the electrochemicaldetermination of acyclovir (ACV). This electrode was designed by incorporation of multiwalledcarbon nanotubes (MWCNTs) and ZnO nanoparticles into the carbon paste matrix,and then poly (o-aminophenol; OAP) film were subsequently electropolymerized on it. Thesurface structure of nanoparticles were characterize...

A simple and selective carbon paste electrode has been developed for the electrochemicaldetermination of acyclovir (ACV). This electrode was designed by incorporation of multiwalledcarbon nanotubes (MWCNTs) and ZnO nanoparticles into the carbon paste matrix,and then poly (o-aminophenol; OAP) film were subsequently electropolymerized on it. Thesurface structure of nanoparticles were characterize...

in this work poly eriochrome black t (ebt) was electrochemically synthesized on the glassy carbon electrode as electrode modifier. on the modified electrode, voltammetric behavior of isoniazid (inh) was investigated. the poly (ebt)-modified glassy carbon electrode has excellent electrocatalytic ability for the electrooxidation of isoniazid. this fact was appeared as a reduced overpotential of i...

We demonstrate synthesis of a polymer-derived ceramic (PDC)-multiwall carbon nanotube (MWCNT) composite using microwave irradiation at 2.45 GHz. The process takes about 10 min of microwave irradiation for the polymer-to-ceramic conversion. The successful conversion of polymer coated carbon nanotubes to ceramic composite is chemically ascertained by Fourier transform-infrared and X-ray photoelec...

An analytical method has been described for the determination of mercury using a carbon paste electrode. Conditions for the preparation of the carbon paste electrode were optimized for low background current in order to use it for the determination of ultra trace levels of mercury. The carbon paste electrode was found to be a good electrode material for the determination of mercury. The optimiz...

Rapid and facile preparation of the cheap modified electrode materials is an important parameter in development of the efficient electrochemical sensor for industrial scale production and mass-market usage. In the present work, the carbon paste electrode modified with multi-walled carbon nanotubes (MWCNTs) was prepared for sensitive determination of lead (Pb) ion in the presence of bismuth (Bi)...

The heart of a multilayer ceramic capacitor (MLC) is a layered monolith of dielectric ceramic and electrode metals as shown in expanded form in Figure 1. The ceramic monolith has terminations added to provide the finished capacitor shown in a cut-away view in Figure 2. KEMET, like the majority of today’s MLC manufacturers uses a “dry” or “tape” process for stacking the layers in the MLCs follow...

The data reported in literature demonstrate that carbon paste electrodes (CPEs) are very suitable for a variety of applications and many works have thus been devoted in the development of new sensitive and selective electrode surfaces based on carbon paste as the electrode material of choice. The application of novel and promising carbonaceous materials, as electrode surfaces, is an issue of gr...