Results 251 to 260 of about 6,445 (304)

Anodic Stripping Voltammetry Enhancement by Redox Magnetohydrodynamics

Analytical Chemistry, 2004
The effect of an external magnetic field on linear scan anodic stripping voltammetry (ASV) in solutions of 10(-6)-10(-7) M concentrations of lead, cadmium, and copper at mercury films on glassy carbon electrodes has been investigated. A high concentration of Hg(2+) was added to the analyte solution to induce a large cathodic current during the ...
Emily A, Clark, Ingrid, Fritsch
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Microcell for anodic stripping voltammetry of trace metals

Analytical and Bioanalytical Chemistry, 1996
A microcell for batch injection stripping voltammetry of trace metals with the use of a rotating disk working electrode has been developed and tested for samples of 0.2-0.3 mL. The detection limits for Pb(2+), Cd(2+) and Zn(2+) are 0.03 ppb and 0.3 for a deposition time of 5.0 and 0.5 min, respectively.
Y I, Tur'yan, E M, Strochkova, I, Kuselman, A, Shenhar   +3 more
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Cyclic voltammetry and anodic stripping voltammetry with mercury ultramicroelectrodes

Analytical Chemistry, 1985
A 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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Anodic stripping voltammetry of copper and bismuth

Mikrochimica Acta, 1975
Microgram and nanogram quantities of copper and bismuth are electrodeposited on a glassy carbon electrode from 10M hydro-fluoric-1M nitric acid solutions. The deposit is then anodically removed in 0.1M perchloric acid or 0.1–12M hydrochloric acid, a current-voltage curve being recorded. Copper and bismuth at p. p. b.
Atsushi Mizuike, Tomoo Miwa, Yukio Fujii
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Anodic stripping voltammetry

Journal of Chemical Education, 1973
Considers the theory, techniques, applications, and instrumentation of anodic stripping voltammetry.
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The determination of gold by anodic stripping voltammetry

Analytica Chimica Acta, 1988
Abstract A method is described for the routine determination of gold as its chloride or cyanide complex by anodic stripping voltammetry at a glassy carbon electrode coupled to a microprocessor-controlled voltammeter. The preferred supporting electrolyte is 0.1 M HCl/0.32 M HNO3, with plating at −200 mV or −1200 mV (vs. Ag/AgCl).
Melvyn Lintern, Alan Mann, Dale Longman
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Trace element speciation by anodic stripping voltammetry

The Analyst, 1992
The effects of a range of complexing agents and a detergent on the stripping process in anodic stripping voltammetry (ASV) were compared by using both differential-pulse and d.c. techniques. The detergent and most of the ligands, added after deposition was complete, seriously affected the height of the differential-pulse waves, and fulvic acid even ...
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Trace analysis by anodic stripping voltammetry

Journal of Electroanalytical Chemistry (1959), 1965
Abstract A generally applicable, rapid method for the determination of low concentrations of copper (0.1–0.0005%) in iron and steels is proposed. Copper is electro-deposited from an alkaline triethanolamine solution on a HMDE, and determined, after medium exchange, from the anodic stripping voltagram.
S. Gottesfeld, M. Ariel
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Anodic stripping pulse voltammetry

Journal of Electroanalytical Chemistry, 1969
Summary The anodic oxidation of cadmium amalgam at the hanging mercury drop electrode was studied. Sensitivity was increased about an order of magnitude over conventional stripping methods. Effects of pulse magnitude and potential scan rate in the differential mode were investigated.
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The determination of indium by anodic stripping voltammetry

Journal of Electroanalytical Chemistry and Interfacial Electrochemistry, 1974
Summary The determination of indium by anodic stripping voltammetry has been investigated both at the hanging mercury drop electrode with differential pulse and a.c. modes, and at the thin film electrode using a rapid d.c. scan. Indium(III) was studied in a variety of supporting electrolytes, and showed completely different behaviour at hanging drop ...
T.M. Florence, G.E. Batley, Yvonne J. Farrar   +2 more
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