Results 141 to 150 of about 2,156 (179)
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A formal scan rate in staircase and square-wave voltammetry
Journal of Electroanalytical Chemistry, 2010Because of the fact that real measurements are sometimes described in terms of the (formal) scan rate, the functional relationships between this parameter and the peak current in staircase (SCV) and square-wave voltammetry (SWV) were investigated theoretically. The real SCV peak current is proportional to the square-root of the formal scan rate, v, and
Milivoj Lovrić
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A complementary survey of staircase voltammetry with metal ion deposition on macroelectrodes
Journal of Electroanalytical Chemistry, 2015Abstract Further analysis of staircase voltammetry for reversible and quasi-reversible metal ion deposition on a same metal electrode and on a foreign electrode is presented. Literal solutions and numerical simulation are used to quantify the electrochemical response under conditions of planar semi-infinite diffusion.
Denise Krulic +2 more
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Electroanalysis, 1995
AbstractA new electroanalytical method, DPSV, employing dual pulses (0.7V and −0.8V) prior to anodic scan (using staircase voltammetry) is developed for simultaneous determination of glucose and fructose. The electrochemistry of both sugars was studied prior to optimizing the operational parameters.
Fung, YS, Mo, SY
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AbstractA new electroanalytical method, DPSV, employing dual pulses (0.7V and −0.8V) prior to anodic scan (using staircase voltammetry) is developed for simultaneous determination of glucose and fructose. The electrochemistry of both sugars was studied prior to optimizing the operational parameters.
Fung, YS, Mo, SY
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Analytical application of differential staircase voltammetry
Fresenius' Journal of Analytical Chemistry, 1990Differential staircase voltammetry is a technique which utilizes the measurements of the dc-component of differential pulse voltammetry. The analytical applicability of the method was estimated using some well-known electrochemical systems. It could be shown that the detection limits of differential staircase voltammetric determinations are almost ...
F. Scholz, M. Draheim, G. Henrion
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Differential staircase voltammetry ? A new electroanalytical technique
Fresenius' Zeitschrift f�r Analytische Chemie, 1988A new voltammetric method is described, which uses a staircase ramp and measures the current during two small time intervals at the end of every potential step. The difference between these two currents is amplified and recorded. The obtained data suggest that the proposed method of differential staircase voltammetry is as sensitive as differential ...
F. Scholz, L. Nitschke, G. Henrion
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Journal of Electroanalytical Chemistry, 1977
Abstract The use of cyclic staircase voltammetry was investigated in order to study kinetic mechanisms at low concentration levels. The reversible case for c.s.c.v. was studied along with two common kinetic cases: e.c. and catalytic mechanism. For both the e.c.
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Abstract The use of cyclic staircase voltammetry was investigated in order to study kinetic mechanisms at low concentration levels. The reversible case for c.s.c.v. was studied along with two common kinetic cases: e.c. and catalytic mechanism. For both the e.c.
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General equivalence of linear scan and staircase voltammetry
Journal of Electroanalytical Chemistry and Interfacial Electrochemistry, 1987Abstract Linear scan voltammetry is specified by one parameter, the scan rate, ν, whereas staircase voltammetry requires three parameters, the step height, ΔE, step width, τ, and fraction of the step width at which current is sampled, α. Here it is shown that the response in linear scan is the same (within acceptable limits) as that for staircase ...
M. Seralathan +2 more
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Theory of staircase voltammetry for simple electrode reactions
Analytical Chemistry, 1982Stalrcase voltammetry has been proposed as an electroanalyticaltechnlque which allows the obsarvatlon of pure faradaiccurrent. In the present paper the staircase wave form Isregarded as a hear sweep wlth a superlmposed perlodlcsawtooth perturbatlon. Wlth the sawtooth represented by aFowler serles, under sultable condltlons the theory of theclassical ac
S.t.e.f.a.n.o. Stefani, SEEBER, Renato
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Cyclic versus Staircase Voltammetry in Electrocatalysis: Theoretical Aspects
Journal of The Electrochemical Society, 2011The transient response of a series RC equivalent circuit to a staircase potential perturbation, where R represents the resistance due to the electrolyte and C a voltage dependent interfacial capacitance, has been examined theoretically using, as a model system, capacitance data believed to be characteristic of the Pt(111) | 0.1 M HClO 4 interface ...
Bin Hai +4 more
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Application of staircase voltammetry with a varied current sampling time
Journal of Electroanalytical Chemistry, 1973Summary The technique of staircase voltammetry with a varied current sampling time has been evaluated with regard to its application in electrochemical kinetic studies. Instrumentation for staircase voltammetry and procedures to implement the technique and evaluate the data obtained are described.
Donald R. Ferrier +2 more
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