Results 241 to 250 of about 29,788 (277)

Square-wave voltammetry of copper–phenanthroline–tributylphosphate complex

The Analyst, 1994
The mechanism of synergetic adsorptive accumulation of copper(II)–phenanthroline– tributylphosphate (Cu–phen–TBP) complex at the mercury drop electrode surface has been described. The behaviour and characteristics of the CuII mixed ligand complex was studied and the relationship between the properties of square-wave response and the parameters of a ...
Mlakar, Marina, Čuljak, Ivan, Branica, Marko   +2 more
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Redox kinetics in cathodic stripping square‐wave voltammetry

Electroanalysis, 1995
AbstractSeveral redox systems with reactants which are immobilized at the electrode surface (EuSal complex, SeIV and SeIV in the presence of CuII, cysteine and p‐nitrophenol) were studied by square‐wave voltammetry to examine whether their redox kinetics can be measured by using the phenomenon of the ‘quasireversible maximum’.
Lovrić, Milivoj, Mlakar, Marina
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Electrochemical Semiconductor Analysis By Square Wave Voltammetry

ECS Meeting Abstracts, 2020
Studies in the past 20 years have utilized cyclic voltammetry (CV) for determining various electronic properties (e.g. density of states, electron carrier concentrations, trap state capacitances) of semiconducting titanium oxide films in photoelectrocatalytic systems such as dye-sensitized solar cells [1-4].
Bojan Miljkovic, Harry E Ruda
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Differential Multipulse and Square Wave Voltammetries

2016
The electrochemical techniques considered in this chapter present as a common feature that the recorded signal is the difference between the current (or converted charge) sampled at the end of consecutive potential pulses of a given sequence E 1, E 2, …, E p without the initial conditions being regained.
Ángela Molina, Joaquín González
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Cyclic Square Wave Voltammetry: Theory and Experimental

Analytical Letters, 1987
Abstract The voltage wave form of cyclic square wave voltammetry (CSWV) and its theory are presented, and experimental verification of theoretical work for CSWV is given. Indications are that the peak potential difference, Ep, of the differential current between the forward sweep and the reverse sweep is zero. Their peak heights have the same value for
Chen Xinsheng, Pu Guogang
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Ohmic drop effects in square-wave voltammetry

Journal of electroanalytical chemistry (1992), 2001
The ohmic drop effects in square-wave voltammetry (SWV) are studied theoretically. Three different electrode mechanisms are considered: (i) simple redox reaction of a dissolved redox couple, (ii) redox reaction with adsorption of reactant and (iii) surface redox reaction of a strongly immobilized redox couple.
Mirčeski, Valenti, Lovrić, Milivoj
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Square-wave adsorptive cathodic stripping voltammetry of pantoprazole

Journal of Pharmaceutical and Biomedical Analysis, 2003
Adsorption and reduction of pantoprazole were investigated by cyclic and square-wave voltammetry on a hanging mercury drop electrode in Britton-Robinson buffers at pH 2.0-11.0. The reduction process gave rise to a single peak within the entire pH range.
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Isopotential points in reverse square-wave voltammetry

Journal of Electroanalytical Chemistry, 2009
Isopotential points in reverse square-wave voltammetry of irreversible electrode reactions are described for the first time. Experimental results (obtained with Eu3+ in perchlorate solutions) and model calculations indicate that such an intersection appears when the net signals, recorded at increasing step potential, are plotted together.
Lovrić, Milivoj, Zelić, Marina
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Square-wave voltammetry of an aqueous solution of indigo

Journal of Electroanalytical Chemistry, 2000
Indigo is dissolved in water in the concentration of 5×10-5 mol/L and measured by highly sensitive adsorptive stripping square-wave voltammetry in order to determine the parameters of its electrochemical reduction. The formal potential of indigo/leucoindigo redox couple dissolved in the aqueous 0.7 mol/L KNO3, pH 12 (NaOH) is -0.566 ą 0.003 V vs Ag ...
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Square‐wave Amplitude Effect in Cathodic and Anodic Stripping Square‐wave Voltammetry

Electroanalysis, 2018
AbstractIn this paper a theoretical study of stripping processes at planar electrodes under conditions of square‐wave voltammetry is presented. A mechanistic examination for cathodic stripping electrode mechanisms, a simple anodic striping mechanism, and anodic stripping mechanisms coupled with adsorption equilibrium of the analyte are discussed using ...
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