Results 131 to 140 of about 4,449 (164)
Some of the next articles are maybe not open access.
Catalytic Adsorptive Stripping Voltammetry at Film Electrodes
Current Analytical Chemistry, 2008The recent tendency to replace liquid mercury by less toxic electrode materials has led many analysts to investigate and design various thin film electrodes generated ex-situ or in-situ by electroplating the selected metals at different supports, and to develop new stripping and catalytic adsorptive stripping voltammetric procedures that would use ...
Andrzej Bobrowski, Jerzy Zarebski
openaire +1 more source
Adsorptive-catalytic stripping voltammetry for determination of ultratrace titanium
Talanta, 1994An extremely sensitive stripping voltammetric procedure for determination of ultratrace titanium is reported. The method is based on the interfacial preconcentration of titanium-cupferron complex onto the hanging mercury drop electrode, followed by catalytic reduction of the adsorbed complex for the presence of cupferron. The peak currents are directly
Y, Baoxian, Y, Shuxun
openaire +2 more sources
Speciation of antimony by adsorptive stripping voltammetry using pyrogallol
Talanta, 2007This paper describes a new procedure for the determination of Sb (III) and Sb (V) by differential pulse adsorptive stripping voltammetry (DPAdSV) using pyrogallol as a complexing agent. The selection of the experimental conditions was made using experimental design methodology.
M Jesús, Gómez González +2 more
openaire +2 more sources
Aluminium speciation by adsorptive stripping voltammetry
2012x
Magnier, Aurelie +2 more
openaire +1 more source
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
openaire +2 more sources
Differential pulse adsorptive stripping voltammetry of osmium-modified peptides
Bioelectrochemistry, 2002Complexes of osmium tetroxide with nitrogen ligands were developed and used in our laboratory as probes of the DNA structure. Here, we show that the complex of osmium tetroxide with 2,2'-bipyridine (Os,bipy) can be used for modification and electrochemical detection of proteins at neutral pH.
Sabina, Billová +2 more
openaire +2 more sources
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
openaire +2 more sources
Adsorptive stripping voltammetry in pharmaceutical analysis
1992The use and advantages of adsorptive stripping voltammetry at the hanging mercury drop electrode in pharmaceutical analysis are discussed and the generally applicable procedure is given. The main advantages are increased sensitivity, selectivity and low cost. Various studies on this subject since 1984 are reviewed.
GRATTERI, PAOLA +4 more
openaire +1 more source
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
openaire +2 more sources
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
openaire +2 more sources