Results 291 to 300 of about 30,772 (337)
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Theory of multiple square wave voltammetries
Journal of Electroanalytical Chemistry and Interfacial Electrochemistry, 1986Abstract A study of square wave voltammetries in which several pairs of opposing impulses are superimposed on each step of a staircase waveform, with or without integration of the current, is presented for reversible redox systems. The new fast techniques that result, yield responses greater than those obtained with the other classical methods.
N. Fatouros +3 more
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Hot-SWV: Square Wave Voltammetry with Hot Microelectrodes
Analytical Chemistry, 2020A promising strategy to lowering detection limits in electrochemical analysis is the active modulation of the electrode temperature. Specifically, by tuning the electrode's surface temperature one can enhance detection limits due to improved electrode process kinetics and increased mass transfer rates, all without affecting the bulk solution. Motivated
Ariana Frkonja-Kuczin +3 more
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Reverse scans in square wave voltammetry
Journal of Electroanalytical Chemistry, 2002Reverse scans in square wave voltammetry (SWV) leading to the regeneration of the substance initially present in solution are studied. Widths and peak potentials of waves in SWV performed with both negative and positive potential scans allow us to determine easily the kinetic parameters of a slow electrochemical reaction.
Fatouros, Nicolas, Krulic, Denise
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2005
Square-wave voltammetry (SWV) is one of the four major voltammetric techniques provided by modern computer-controlled electroanalytical instruments, such as Autolab and µAutolab (both EcoChemie, Utrecht), BAS 100 A (Bioanalytical Systems) and PAR Model 384 B (Princeton Applied Research).
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Square-wave voltammetry (SWV) is one of the four major voltammetric techniques provided by modern computer-controlled electroanalytical instruments, such as Autolab and µAutolab (both EcoChemie, Utrecht), BAS 100 A (Bioanalytical Systems) and PAR Model 384 B (Princeton Applied Research).
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Quasireversible Maximum in Cathodic Stripping Square-Wave Voltammetry
Electroanalysis, 1999The apparent reversibility of a redox reaction, together with the position of the quasireversible maximum, depend on the single complex kinetic parameter K, which is defined through the standard rate constant, diffusion coefficient of the ligand and frequency of the SW signal.
Mirčeski, Valentin, Lovrić, Milivoj
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Square-Wave Voltammetry of Cocaine
Analytica chimica acta, 2004Electrochemical properties of cocaine and its metabolites such as benzoyl ecgonine (BE), ecgonine, and methyl ester ecgonine have been studied by means of square-wave voltammetry at a hanging mercury drop electrode. In a phosphate buffer at pH = 7 cocaine give rise to a single voltammetric peak at about - 1.490 V vs Ag/AgCl (3 mol/L KCl). At higher pH,
Pavlova, Valentina +4 more
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Square-wave voltammetry of berberine
Journal of Electroanalytical Chemistry and Interfacial Electrochemistry, 1987Abstract Square-wave voltammetry (SWV) is applied to the quantitative analysis of berberine in supporting electrolytes of different pHs. In 0.1 mol/dm3 aqueous solution of NaCl+HCl (pH 2) the lowest detectable concentration of berberine is 0.006 μg/ml. The sensitivity of SWV can be increased by prolonged adsorptive accumulation of berberine.
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Square-wave voltammetry of copper–phenanthroline–tributylphosphate complex
The Analyst, 1994The 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 +2 more
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Redox kinetics in cathodic stripping square‐wave voltammetry
Electroanalysis, 1995AbstractSeveral 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, 2020Studies 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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