Results 181 to 190 of about 374 (211)
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Adsorptive stripping voltammetry of a fentanyl derivative at a mercury electrode
Talanta, 1994In a supporting electrolyte of NaOH, a pair of cathodic and anodic peaks of N,N'-diphenyl-N,N'-bis(1-phenylmethyl-4-piperidinyl)-ethanediamide (DBPPE) is found by cyclic voltammetry at a Hg electrode. The cathodic and anodic peak potentials are -1.53 and -1.46 V (vs. Ag/AgCl), respectively.
N, Hu, H, Guo, S, Lin
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Adsorptive stripping voltammetry applied to drug analysis: A powerful tool [PDF]
Journal of Pharmaceutical and Biomedical Analysis, 1989 A brief review of the principles and instrumentation of adsorptive stripping voltammetry is presented and the advantages of the method are described. As for many highly sensitive techniques applied to the analysis of complex media, severe interferences may occur.
G J Patriarche +2 more
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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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Determination of traces molybdenum by catalytic adsorptive stripping voltammetry
Talanta, 2005A reliable and very sensitive procedure for the determination of ultra trace of molybdenum is proposed. Molybdenum was determined by cathodic stripping differential pulse voltammetry based on the adsorption collection of the Mo(VI)-Tiron complex on a hanging mercury drop electrode (HMDE).
Ali A, Ensafi, Shokooh S, Khaloo
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Application of Elimination Voltammetry to Adsorptive Stripping of DNA
Electroanalysis, 2000Adsorptive stripping voltammetry has been extended by elimination voltammetry with linear scan rate (EVLS). EVLS offers the elimination of selected currents from the linear scan voltammetry results. It can be achieved by an elimination function formed by a linear combination of total currents measured at different scan rates, because the basic idea of ...
René Kizek
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Fast adsorptive stripping voltammetry of iron in oxygenated seawater
Electroanalysis, 1996AbstractA fast adsorptive stripping voltammetric procedure for the determination of ultratrace amounts of iron in unpurged oceanic waters is reported. The method is based on that developed by van den Berg et al. [l]. It was modified to increase the sensitivity, to measure in the presence of oxygen and to reduce drastically the analysis time at the ...
Gelado-Caballero, María D. +4 more
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Adsorptive stripping voltammetry for the determination of nifedipine in human serum
Talanta, 1989Adsorptive stripping voltammetry is used for the determination of trace levels of nifedipine. The conditions for preconcentration on the mercury drop electrode have been studied and the final measurements are made by differential pulse voltammetry.
R J, Diez-Caballero +3 more
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Determination of medecamycin by adsorptive stripping voltammetry with an activated electrode
Analytical and Bioanalytical Chemistry, 2004The adsorptive and electrochemical behaviors of medecamycin were investigated on a glassy carbon electrode (GCE) pretreated by anodic oxidation at +1.8 V for 5 min in 0.025 mol l(-1) NH(3)-NH(4)Cl (pH 8.6) solution. An adsorptive stripping voltammetric method for the determination of medecamycin at the pretreated glassy carbon electrode has been ...
Nian Bing, Li +2 more
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On-line determination of vanadium by adsorptive stripping voltammetry
Analytica Chimica Acta, 1995Abstract An on-line electrochemical stripping procedure for trace determination of vanadium was developed combining the advantages of adsorptive stripping voltammetry with flow injection analysis. The vanadium formed a complex with cupferron in an acetate buffered solution which adsorbed onto the mercury film electrode.
Gillian M. Greenway, Georg Wolfbauer
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Indirect determination of surfactants by adsorptive stripping voltammetry
Analytica Chimica Acta, 1986Abstract The effect of some anionic, cationic and nonionic surface-active substances on the suppression of adsorptive accumulation of the bis(dimethylglyoximato)nickel(II) complex, Ni(DMG) 2 , is described. Competitive adsorption of surfactants can be used to determine surfactants commonly used in commercial detergents.
B Pihlar, B Gorenc, D Petric
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