Results 261 to 270 of about 12,227 (299)
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Microanalysis of DNA by stripping transfer voltammetry
Bioelectrochemistry, 2004A cathodic stripping transfer voltammetric procedure for trace determination of DNA and its components is described. The method is based on the DNA acid hydrolysis with subsequent electrochemical determination of released purine bases. In the first step, DNA is hydrolyzed for 30 min in 0.5 M perchloric acid at 75 degrees C.
Frantisek, Jelen +3 more
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Stripping voltammetry in environmental and food analysis
Fresenius' Journal of Analytical Chemistry, 2000The review covers over 230 papers published mostly in the last 5 years. The goal of the review is to attract the attention of researchers and users to stripping voltammetry in particular, its application in environmental monitoring and analysis of foodstuffs.
K Z, Brainina +2 more
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Cyclic voltammetry and anodic stripping voltammetry with mercury ultramicroelectrodes
Analytical Chemistry, 1985A method for the preparation of mercury microvoltammetric electrodes of hemispherical geometry with radii of 2.3-7.3 ..mu..m has been developed. Mercury is electrodeposited from solutions of Hg(I) onto a microvoltammetric platinum disk electrode at a constant potential sufficient to ensure diffusion limited conditions.
Kenneth R. Wehmeyer, R. Mark. Wightman
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Nomenclature of stripping voltammetry
Analytical Proceedings including Analytical Communications, 1995Problems in selecting an effective nomenclature for stripping voltammetry are discussed. Stripping voltammetry is a two-step process, accumulation and determination, and the technique can be considered to be a ‘hyphenated technique’. The method of determination is usually given in naming the particular technique, but often the method of accumulation is
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2005
Electrochemical stripping means the oxidative or reductive removal of atoms, ions or compounds from an electrode surface (or from the electrode body, as in the case of liquid mercury electrodes with dissolved metals). Generally, these atoms, ions or compounds have been preliminarily immobilized on the surface of an inert electrode (or within it) as the
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Electrochemical stripping means the oxidative or reductive removal of atoms, ions or compounds from an electrode surface (or from the electrode body, as in the case of liquid mercury electrodes with dissolved metals). Generally, these atoms, ions or compounds have been preliminarily immobilized on the surface of an inert electrode (or within it) as the
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Determination of orthochlorophenol by stripping voltammetry
Electroanalysis, 1995AbstractThe present work reports on a differential pulse and square wave stripping voltammetric procedure for the determination of orthochlorophenol. The best conditions included using 0.1 M KOH solution, an accumulation potential of 0.4 V vs. Ag/AgCl electrode, a square wave amplitude of 60mV, a frequency of 50 Hz, a step potential of 4mV, and an ...
P. Manisankar, H. Gurumallesh Prabu
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Voltammetry: potentiometric stripping analysis
2019Potentiometric stripping analysis (PSA), also known as stripping chronopotentiometry (SCP), is an electroanalytical technique based on the accumulation either by electrolysis or by adsorption of the analyte on the electrode and its further stripping back to the solution mostly by oxidation in the presence of a chemical oxidant or by the application of ...
Honeychurch, Michael J. +4 more
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Determination of Ammonium by Stripping Voltammetry
Journal of Analytical Chemistry, 2001The behavior of barium(II) at a mercury electrode in 0.1 M KCl and 0.1 to 0.001 M KI solutions was studied by stripping voltammetry. The conditions for barium(II) accumulation on a silver-supported mercury film electrode were selected. Procedures for determining barium in potassium salts by stripping voltammetry were proposed.
V. P. Gladyshev +2 more
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Cathodic stripping voltammetry of manganese
Journal of Electroanalytical Chemistry and Interfacial Electrochemistry, 1969Summary A procedure is described for determining manganese in concentrations down to 10−9M using a cathodic stripping voltammetry technique. The conditions for the determination and the effect of the composition of the solution and of variations of the technique employed were studied.
E. Hrabánková, J. Doležal, V. Mašin
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Absorptive accumulation in stripping voltammetry
Analytica Chimica Acta, 1982Abstract A critical evaluation of adsorptive accumulation in stripping analysis, with differential pulse polarography for the measurement step, is described. Generally applicable conditions for this method are given. Adsorptive accumulation at a static mercury drop electrode is discussed for some alkaloids, local anaesthetics, surfactants and ...
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