Results 121 to 130 of about 10,400 (164)
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Metalloporphyrin containing carbon paste electrodes
Journal of Electroanalytical Chemistry and Interfacial Electrochemistry, 1985Abstract Iron and manganese tetraphenylporphyrin chlorides can be dissolved in 1-nonanol and mixed into a carbon paste electrode which in aqueous buffer exhibits the classic metal(III/II) cyclic voltammetry. The voltammetric formal potential shifts negatively by 60 mV/pH unit, and enhanced, electrocatalytic currents are observed in the presence of ...
Esther S. Takeuchi, Royce W. Murray
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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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A microscopic study on carbon paste electrodes
Electroanalysis, 1996AbstractScanning electron microscopy has been used for observing the surface of several types of carbon paste electrodes in order to reveal the role of both pasting liquid and carbon powder on the formation of the carbon paste structure. The effect of pasting liquid was studied using carbon pastes prepared from RW‐B multicrystalline graphite powder and
Ivan Švancara +4 more
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Electrooxidation of methadone on carbon paste electrodes
Electrochimica Acta, 1989Abstract The oxidation of methadone on carbon paste electrodes has been studied using voltammetric techniques under semi-infinite linear diffusion and hydrodynamic conditions. A simple “in situ” electrode pretreatment is proposed to obtain a good reproducibility of the current signal.
J.R. Barreira Rodriguez +2 more
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Carbon Paste Electrodes in Modern Electroanalysis
Critical Reviews in Analytical Chemistry, 2001Recent trends and advances in the electrochemistry with both unmodified and modified carbon paste electrodes are reviewed (247 refs.). Present day knowledge of their basic physico-chemical properties and characteristics is surveyed, including some specifics important in electrochemical measurements.
Ivan Švancara +3 more
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Voltammetric determination of Celiptium with carbon paste and lipid-modified carbon paste electrodes [PDF]
Analytica Chimica Acta, 1990 Abstract The electrooxidation of the antitumour drug 2-methyl-9-hydroxyellipticinium (Celiptium) was investigated by cyclic, differential-pulse and adsorptive voltammetry at carbon paste (CPE) and lipid-modified carbon paste electrodes (LM-CPE). The influence of the paste composition, i.e., the ratio of graphite to binder, was studied in order to ...
Kauffmann, Jean-Michel +3 more
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Voltammetric study of glibenclamide at carbon paste and Sephadex-modified carbon paste electrodes
Analytical and Bioanalytical Chemistry, 2004The 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 ...
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Voltammetric studies on carbon paste electrodes
Journal of Electroanalytical Chemistry and Interfacial Electrochemistry, 1984ABstract The relative importance of the carbon and the pasting liquid on the properties of the carbon paste electrode was studied using cyclic potential sweep voltammetry. The effect on electrode capacity and kinetics for the systems hexacyanoferrate (II) and hydroquinone in phosphate buffer of pH 6.8 was compared.
Csaba Urbaniczky, Kent Lundström
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Electrochimica Acta, 2007
Ionic liquid, 1-heptyl-3-methylimidazolium hexafluorophosphate (HMIMPF6), has been used to fabricate two new electrodes, carbon ionic liquid electrode (CILE) and ionic liquid modified carbon paste electrode (IL/CPE), using graphite powder mixed with HMIMPF6 or the mixture of HMIMPF6/paraffin liquid as the binder, respectively.
Ya Zhang, Jian Bin Zheng
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Ionic liquid, 1-heptyl-3-methylimidazolium hexafluorophosphate (HMIMPF6), has been used to fabricate two new electrodes, carbon ionic liquid electrode (CILE) and ionic liquid modified carbon paste electrode (IL/CPE), using graphite powder mixed with HMIMPF6 or the mixture of HMIMPF6/paraffin liquid as the binder, respectively.
Ya Zhang, Jian Bin Zheng
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Metal-dispersed carbon paste electrodes
Analytical Chemistry, 1992The preparation of metal-dispersed carbon paste electrodes, based on mixing an organic binder with metalized graphite, is described. Such electrodes combine the efficient electrocatalytic activity of metal microparticles with the attractive properties of carbon paste matrices.
Joseph. Wang +4 more
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