Results 241 to 250 of about 191,668 (311)

The zeolite-modified carbon paste electrode

Journal of Electroanalytical Chemistry and Interfacial Electrochemistry, 1988
The electrochemical behavior of a Cu(II)-exchanged zeolite-modified electrode, constructed by incorporating the zeolite into the carbon powder + paraffin oil matrix used to manufacture a conventional carbon paste electrode, is investigated by cyclic voltammetric measurements.
N. El Murr, M. Kerkeni, A. Sellami, Y.Ben Taarit   +3 more
openaire   +1 more source

Voltammetric study of glibenclamide at carbon paste and Sephadex-modified carbon paste electrodes

Analytical and Bioanalytical Chemistry, 2004
The oxidative behaviour of the antidiabetic agent glibenclamide on a bare carbon paste electrode (CPE) and a Sephadex-modified carbon paste electrode (SMCPE) was explored by cyclic and differential pulse voltammetry (DPV). The analysis procedure consisted of an open circuit accumulation step in stirred sample solution of Britton-Robinson buffer (0.04 ...
openaire   +2 more sources

A new type of hydrophilic carbon paste electrodes for biosensor manufacturing: binder paste electrodes

Biosensors and Bioelectronics, 1997
The effect of two types of carbon pastes and two osmium-based redox mediators on the response of amperometric enzyme electrodes for glucose was examined. A hydrophobic mediator and a hydrophilic cationic mediator were prepared and mixed in a paste that contained either mineral oil as the pasting liquid, or a polycationic electrolyte without oil. It was
J, Parellada, A, Narváez, E, Domínguez, I, Katakis   +3 more
openaire   +2 more sources

Lead dioxide-coated carbon paste electrodes

Analytica Chimica Acta, 1979
Lead dioxide electrodeposited under optimized conditions on carbon paste provides an electroanalytically useful electrode, with an anodic working range extending to 1.9 V. Voltammograms for sulphite are used to study electrode lifetime and reproducibility; calibration graphs are linear up to 10-3M sulphite in 0.5 M sulphuric acid.
C. Efron, M. Ariel
openaire   +1 more source

Enhanced Electrochemical Detection of Rutin Using Poly (Methyl Orange) Modified Carbon Paste Electrode as a Responsive Electrochemical Sensor

Chemistry Africa, 2023
J. G. Manjunatha, B. Kanthappa, N. Hareesha, C. Raril, A. M. Tighezza, Munirah D. Albaqami   +5 more
semanticscholar   +1 more source

A new carbon paste electrode modified with MWCNTs and nano-structured molecularly imprinted polymer for ultratrace determination of trimipramine: The crucial effect of electrode components mixing on its performance.

Biosensors & bioelectronics, 2018
A novel carbon nanocomposite paste electrode was prepared and used as a voltammetric sensor for ultratrace determination of trimipramine (TRI) which currently used for the treatment of psychiatric disorders.
Maedeh Akhoundian, T. Alizadeh, M. Ganjali, Faride Rafiei   +3 more
semanticscholar   +1 more source

Chemically modified carbon paste and carbon composite electrodes

Electroanalysis, 1989
AbstractCarbon paste electrodes and composite carbon electrodes modified by 20% silica gel (30 μm) within the electrode material exhibit many properties typical of a strand of carbon fiber microelectrodes in voltammetric measurements. Charged and uncharged species were studied on these electrodes; phenol, ferricyanide, and potassium ethylxanthogenate ...
Věra Stará, Miloslav Kopanica
openaire   +1 more source

Single‐Wall Carbon Nanotube Paste Electrodes: a Comparison with Carbon Paste, Platinum and Glassy Carbon Electrodes via Cyclic Voltammetric Data

Electroanalysis, 2004
AbstractA new carbon electrode material, obtained by mixing single wall carbon nanotubes (SWNTs) with a mineral oil binder is studied. Carbon nanotube pastes show the special properties of carbon nanotubes combined with the various advantages of composite electrodes such as a very low capacitance (background current) and the possibility of an easy ...
ANTIOCHIA, RICCARDA, Irma Lavagnini, Franco Magno, Federica Valentini, Giuseppe Palleschi   +4 more
openaire   +2 more sources

Co-detection of carmoisine and tartrazine by carbon paste electrode modified with ionic liquid and MoO3/WO3 nanocomposite

Journal of Food Measurement & Characterization, 2021
S. Tajik, Azadeh Lohrasbi‐Nejad, Peyman Mohammadzadeh Jahani, M. Askari, Parisa Salarizadeh, H. Beitollahi   +5 more
semanticscholar   +1 more source

Detection of homocysteine at carbon nanotube paste electrodes

Talanta, 2004
The use of a carbon-nanotube paste (CNTP) electrode provides an effective means for the determination of homocysteine. A decrease of ca. 120mV in the overpotential for the oxidation of homocysteine compared to a traditional carbon paste electrode, is reported along with greatly enhanced signal-to-noise characteristics.
Nathan S, Lawrence, Randhir P, Deo, Joseph, Wang   +2 more
openaire   +2 more sources