Results 251 to 260 of about 2,051,359 (297)

Theory of differential normal pulse voltammetry

Electrochimica Acta, 1982
Abstract An analytical solution is presented for the case of double potential step chronoamperometry at a stationary planar electrode for the case of heterogeneous charge transfer control. Extension of the result to multiple potential steps gives the current—potential response for differential normal pulse voltammetry.
Milivoj Lovrić, Janet Osteryoung
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Thin-layer differential pulse voltammetry

Analytical Chemistry, 1977
The applicability of differential pulse anodic stripping voltammetry to thin-layer electrodes is demonstrated with PbZ+, CdZ+, Zn2+, CuZf, and TI'. Typical calibration curves are linear over a range of 30 to 600 ng/mL with a detection limit of 10 ng/mL. Samples of blood, soybean, and oyster were analyzed for lead.
Thomas P. DeAngelis, Rodney E. Bond, Elwood E. Brooks, William R. Heineman   +3 more
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Reverse Differential Pulse Voltammetry and Polarography

Analytical Chemistry, 1995
In this paper we obtain the analytical solution for the reverse differential pulse (RDP) technique for a slow electronic transfer process, starting from expressions obtained previously for the faradaic response to a triple potential pulse. The solutions are valid for the planar approximations of a static mercury drop electrode and of a dropping mercury
Luis. Camacho, Juan Jose. Ruiz, Carmen. Serna, Francisco. Martinez-Ortiz, Angela. Molina   +4 more
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Differential pulse voltammetry at microdisk electrodes

Electrochimica Acta, 2005
Expressions for reversible differential pulse (DP) voltammograms at microdisk electrodes were established from experimental results as a function of pulse electrolysis parameters. Three expressions were computed numerically, depending on the electrode radius and varying the pulse interval, tau.
Legeai, Sophie, Chatelut, Michelle, Vittori, Olivier   +2 more
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Multielement determination in biological materials by differential pulse voltammetry

Analytical Chemistry, 1985
A simple and reliable multielement approach for the determination of up to eight elements in a single biological sample digest at major, minor, trace, and/or ultratrace levels has been developed. The method employs a wide range of voltammetric techniques such as polarography, cathodic stripping, anodic stripping, and adsorption voltammetry in their ...
S B, Adeloju, A M, Bond, M H, Briggs
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Direct Determination of Acetaminophen in Plasma by Differential Pulse Voltammetry

Journal of Pharmaceutical Sciences, 1978
A rapid, simple method for the direct determination of acetaminophen in plasma at toxic levels was developed. The method is based on the oxidation of the phenolic moiety of acetaminophen at a carbon paste electrode in a differential pulse voltammetric mode. Linear calibration curves are obtained from 20 to 400 microgram/ml.
J W, Munson, H, Abdine
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Differential Pulse Voltammetry of Nitrobenzene

ECS Meeting Abstracts, 2018
Removal of nitrobenzene from water is of current interest due to its toxicity (1) as a mutagen and carcinogen. Water sample with initial known concentration of nitrobenzene (4mM) was taken and treated with adsorbent: spent tea leaves (2). After treatment with adsorbent nitrobenzene was analyzed using such electrochemical techniques (3) as ...
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Determination of cadmium by differential pulse adsorptive stripping voltammetry

Journal of Pharmaceutical and Biomedical Analysis, 2000
A study of the adsorptive stripping voltammetry of cadmium on a mercury drop electrode is reported in which 2-mercapto-5-phenyl-amino-1,3,4-thiadiazole (MPATD), synthesized at home has been used as a chelating agent. The most suitable operating conditions and parameters such as buffer, pH, deposition potential, deposition time, ligand concentration ...
P, Suciu, M, Vega, L, Roman
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Differential linear scan voltammetry: analytical performance in comparison with pulsed voltammetry techniques

Analytical and Bioanalytical Chemistry, 2013
We report here on differential linear scan voltammetry, DLSV, that combines the working principles of linear scan voltammetry, LSV, and the numerous existing pulsed voltammetry techniques. DLSV preserves the information from continuous interrogation in voltage and high accuracy that LSV provides about electrochemical processes, and the much better ...
Disha B, Sheth, Miklós, Gratzl
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Determination of promethazine by anodic differential-pulse voltammetry

Analytica Chimica Acta, 1984
Abstract A differential-pulse voltammetric method is described for the determination of promethazine hydrochloride. The method is based on the anodic oxidation of promethazine on a glassy carbon electrode at + 0.64 V vs. SCE in Prideaux buffer of pH 2.3.
R.I. Baxter, G. Svehla, B. Kerr, A.D. Woolfson   +3 more
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