Results 251 to 260 of about 4,019,710 (295)
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The zeolite-modified carbon paste electrode
Journal of Electroanalytical Chemistry and Interfacial Electrochemistry, 1988The 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 +3 more
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Chemically modified carbon paste and carbon composite electrodes
Electroanalysis, 1989AbstractCarbon 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
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Electrochemical behavior of marcellomycin at lipid-modified carbon-paste electrodes
Talanta, 1990A lipid-modified carbon-paste electrode is prepared by mixing phospholipids with the carbon-paste matrix. The resulting electrodes have polar head-groups which allow interactions with positively charged drugs and improved preconcentration/extraction steps.
Chastel, Olivier +3 more
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Organo-montmorillonites as carbon paste electrode modifiers
Journal of Solid State Electrochemistry, 2015Alkylammonium derivatives of montmorillonite (standards SAz-1 and SWy-2, Source Clay Repository (USA)) were prepared by sorption of hexadecyltrimethylammonium, benzyldimethylhexadecylammonium and hexadecylpyridinium cations. Characterization of the prepared alkylammonium montmorillonites by means of X-ray diffraction and infrared spectroscopy proved a ...
Zuzana Navrátilová, Martin Mucha
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Zeolite-modified solid carbon paste electrodes
Journal of Solid State Electrochemistry, 2003New zeolite-modified carbon-based electrodes are described. They are based either on the physical anchoring of zeolite particles on the surface of solid carbon paste (the viscosity of which can be tuned by temperature change or controlled dissolution by an organic solvent), or on the dispersion of zeolite particles in the bulk of a carbon paste matrix ...
Walcarius, Alain +2 more
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Carbon paste electrodes electrochemically modified with cyclodextrins
Journal of Solid State Electrochemistry, 2003Cyclic voltammetry was used in order to obtain carbon paste electrodes (CPEs) modified with α- and β-cyclodextrins (CPEα-CD, CPEβ-CD) in HClO4 media as electrolyte. The modified CPEs were obtained by applying 30 potential cycles, thus forming on the substrate a film with electroactive characteristics; a rise in current for the anodic and cathodic peaks
Gabriela Roa Morales +2 more
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Determination of phenylephrine with a modified carbon paste electrode
Analytica Chimica Acta, 1995Abstract An anodic stripping voltammetric method for determination of phenylephrine with a modified carbon paste electrode is developed. The modified carbon paste electrode was prepared with carbon paste mixed with a cation exchange resin containing the functional group CO2Na. Linear scan voltammetry was used for the electrochemical measurements. The
J.C. Perlado +4 more
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Carbon paste electrodes modified with enzymes, tissues, and cells
Electroanalysis, 1995AbstractA review is presented dealing with the use of carbon paste amperometric electrodes for electroanalytical purposes, with either the surface or the bulk being modified with biologically derived material such as enzymes, tissues, and cells. It covers virtually all the publications which have appeared from the very first enzyme‐modified carbon ...
Lo Gorton
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Determination of Carbendazim by an Ionic Liquid-Modified Carbon Paste Electrode
Analytical Letters, 2016ABSTRACTA new method for the electroanalytical determination of carbendazim is reported using a novel ionic liquid based carbon paste electrode. 1-Hexyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide, 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide, and 1-butyl-1-methylpyrrolidinium bis(trifluoromethyl-sulfonyl)imide were used as ...
Jelena S. Đorđević +3 more
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Voltammetric determination of mifepristone at a DNA-modified carbon paste electrode
Fresenius' Journal of Analytical Chemistry, 2000A new strategy for the preparation of a DNA-modified carbon paste electrode is developed. It is found that the anodic response of mifepristone is greatly enhanced at the dsDNA-modified carbon paste electrode comparing with that obtained at the bare electrode, while the response at a ssDNA-modified electrode is similar to bare electrode.
K, Gu, J, Zhu, Y, Zhu, J, Xu, H Y, Chen
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