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Multielement determination in biological materials by differential pulse voltammetry
Analytical Chemistry, 1985A 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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Differential Pulse Voltammetry on Spherical Microelectrodes
Electroanalysis, 1999A theory of differential pulse voltammetry (DPV) and polarography (DPP) of reversible redox reaction on the spherical electrode is developed. Numerical solutions for DPV peak currents and peak potentials are compared with analytical solutions obtained for DPP and satisfactory agreement is found when the period between pulses is more than five times ...
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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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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 cadmium by differential pulse adsorptive stripping voltammetry
Journal of Pharmaceutical and Biomedical Analysis, 2000A 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 Pulse Voltammetry of Nitrobenzene
ECS Meeting Abstracts, 2018Removal 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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Direct Determination of Acetaminophen in Plasma by Differential Pulse Voltammetry
Journal of Pharmaceutical Sciences, 1978A 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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Determination of Zidovudine in Pharmaceuticals by Differential Pulse Voltammetry
Analytical Letters, 2010The zidovudine (AZT) has been extensively used in the treatment of HIV patients due to its antiretroviral activity. The quality control of this substance in drugs is of outstanding importance to public health because of its undesirable effects and short therapeutic interval.
Katia Christina Leandro +2 more
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Differential-pulse adsorptive stripping voltammetry of chlorhexidine
The Analyst, 1991Chlorhexidine gluconate was shown to adsorb onto a hanging mercury drop electrode and to be amenable to quantification by adsorptive stripping voltammetry. A sensitivity of 1 × 10–7 mol dm–3 was easily achieved by simply immersing the electrode in a stirred solution (pH 9.7 ammonia-ammonium acetate buffer) of the drug for a fixed time (60 s), at a ...
GRATTERI, PAOLA +5 more
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Determination of promethazine by anodic differential-pulse voltammetry
Analytica Chimica Acta, 1984Abstract 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 +3 more
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Revisiting the nitrite reductase activity of hemoglobin with differential pulse voltammetry
Analytica Chimica Acta, 2020Nitric oxide (NO) is an omnipresent signalling molecule in all vertebrates. NO modulates blood flow and neural activity. Nitrite anion is one of the most important sources of NO. Nitrite is reduced to NO by various physiological mechanisms including reduction by hemoglobin in vascular system.
Hamid Fini, Kagan Kerman
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