Results 271 to 280 of about 2,051,359 (297)
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Determination of nickel in human nails by adsorption differential-pulse voltammetry

The Analyst, 1985
A procedure is described for the determination of nickel in human nails, which consists in a simple wet digestion followed by quantitation by adsorption differential-pulse voltammetry. This procedure produced more reliable results for low nickel levels than atomic-absorption spectrometry; for unexposed individuals, mean values for nickel in finger-and ...
Gammelgaard, Bente, Andersen, J R
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Determination of chlorpromazine and thioridazine by differential pulse voltammetry in acetonitrile medium

Talanta, 1986
This work describes optimal conditions for the determination of chlorpromazine and thioridazine by DPV, with a detection limit of 4.0 x 10(-7)M (0.16 microg/ml). The well-defined peaks indicate that direct measurement in a medium of 0.03 M perchloric acid in acetonitrile is possible and the use of DPV is advantageous when small amounts are to be ...
N, Zimová, I, Nemec, J, Zima
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Direct determination of lead in blood by differential pulse stripping voltammetry

Clinica Chimica Acta, 1987
A simple and rapid method for determination of lead in blood by differential pulse stripping voltammetry (DPS) without preliminary mineralization of the sample, is described. Lead determination was performed in native samples of blood in the electrolyte of Britton-Robinson buffer (pH 5-5.5).
M, Nedeljković   +3 more
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Determination of the antibacterial trovafloxacin by differential-pulse adsorptive stripping voltammetry

Journal of Pharmaceutical and Biomedical Analysis, 2003
A differential-pulse adsorptive stripping voltammetric method for the determination of trace amounts of the antibacterial trovafloxacin (TRFLX) is proposed. The optimal experimental parameters for the drug assay were: accumulation potential=-0.30 V (vs.
José Luis, Vílchez   +3 more
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Determination of paracetamol in tablets and blood plasma by differential pulse voltammetry

Journal of Pharmaceutical and Biomedical Analysis, 1988
Paracetamol, also known as acetaminophen (APAP) (N-acetyl-p-aminophenol), is a widely used non-narcotic analgesic and antipyretic agent. The determination of paracetamol is important for assessing stability for therapeutic monitoring and for possible toxicological effects.
I, Navarro   +3 more
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Determination of gallium traces by differential pulse anodic stripping voltammetry

Fresenius' Zeitschrift für analytische Chemie, 1988
The determination of gallium traces is carried out on the hanging drop mercury electrode in solutions of low ionic strength and in absence of complexing agents. At pH=3.2, where stable solutions are obtained, concentrations of 0.2 μg Ga l−1 are determinated with a standard deviation of 0.96% and a detection limit of 4 ng Ga l−1.
UDISTI, ROBERTO, PICCARDI, GIOVANNI
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Determination of chlorite in drinking water by differential pulse voltammetry on graphite

Analytical and Bioanalytical Chemistry, 2004
The chlorite ion is an unavoidable by-product of the disinfection of drinking water by means of chlorine dioxide. The maximum concentration values of chlorite accepted in many countries' regulations range from 0.2 to 1.0 mg L(-1). A simple, inexpensive and quickly set up voltammetric procedure for the on-site determination of chlorite in drinking water
PEZZATINI, GIOVANNI   +4 more
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Stepped-potential voltammetries at stationary electrodes Part 1. Differential staircase, differential pulse and square-wave voltammetries

Journal of Electroanalytical Chemistry, 1995
Abstract Differential pulse voltammetry (DPV) and related techniques are examined. The proposed treatment is valid for any pulse method performed at stationary plane or spherical electrodes in the case of simple reversible reactions with both redox forms soluble in solution.
Krulic, Denise   +2 more
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Deciphering the redox signature and reactivity of wines with differential pulse voltammetry

Bioelectrochemistry
Phenolic compounds, including polyphenols and tannins, contribute to the sensory characteristics of wines and help protect them against oxidation through their reductive properties. Linear or cyclic voltammetry methods were previously reported to monitor specific wine phenolic compounds and decipher on their antioxidant activity.
Alice L, Dauphin   +2 more
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