Results 161 to 170 of about 9,790 (191)

A cyclic voltammetric study of vitamin B12 derivatives

Journal of Electroanalytical Chemistry, 1974
Summary The cyclic voltammograms of vitamin B12 and a number of derivatives were investigated. Variation of the cathodic peak potentials with axial ligand indicated the same trend that has been reported earlier from polarography. The interconversion between the cobalt(II) and cobalt(I) oxidation states was studied in some detail.
Paul G. Swetik, Dennis G. Brown
openaire   +2 more sources

Cyclic Voltammetric Study of Losartan Potassium

International Research Journal of Pure and Applied Chemistry, 2014
Cyclic voltammetric technique has been used for investigation of electrochemical parameters of antihypertensive drug, Losartan Potassium. This drug is usually used for the treatment of blood pressure, type II diabetic disease with proteinuria and stroke prevention.
openaire   +1 more source

Cyclic voltammetric studies of electroless cobalt in NaOH

Electrochimica Acta, 1975
Abstract The electrochemical behaviour of electroless cobalt in 1N NaOH was studied at 35, 60 and 85°C by cyclic voltammetry. Three anodic peaks corresponding to the formation of Co(OH) 2 /CoO, Co 3 O 4 , Co OOH were observed. The observed cathodic peaks were due to the reduction of the higher cobalt oxides to Co(OH) 2 and also due to the reduction ...
T.R. Jayaraman, V.K. Venkatesan, H.V.K. Udupa   +2 more
openaire   +1 more source

Cyclic Voltammetric study of colchicine.

Pakistan journal of pharmaceutical sciences, 2006
Cyclic Voltammetry reveals the reversible electrode processes during the cyclic oxidation-reduction of the colchicine in 0.1 M H2SO4. The behaviour of Peak potential with pH was studied to investigate the acid base reaction of the species, involved in the electrochemical reaction.
openaire   +1 more source

Cyclic multipulse voltammetric techniques. Part II: EC mechanism

Journal of Electroanalytical Chemistry, 2014
A theoretical analysis of electrode processes controlled by kinetics of follow-up homogeneous chemical reaction under conditions of (simple) cyclic multi pulse voltammetry (CMPV), cyclic differential multi pulse voltammetry (CDMPV) and cyclic square-wave voltammetry (CSWV) is presented.
Zelić, Marina, Jadreško, Dijana
openaire   +2 more sources

Cyclic voltammetric determination of adrenaline in the presence of copper(II) ions

Talanta, 1980
Low concentrations of adrenaline (10(-5)-10(-4)M) have been found to give rise to quite marked current peaks in the cyclic voltammograms recorded for ammoniacal solutions containing a copper(II) salt at around 10(-4)M. Fast sweep-rates (20 V/sec) are generated by a cathode-ray polarograph and applied to a DME.
M, Przegalinski, J, Matysik
openaire   +2 more sources

The cyclic voltammetric study of iron-tallysomycin in the absence and presence of DNA

Journal of Inorganic Biochemistry, 1990
Cyclic voltammetric studies on iron-tallysomycin complexes have been conducted with and without the presence of calf thymus DNA. Fe(II)-TLM samples exhibit a cyclic voltammogram with only a reduction peak at -230 +/- 5 mV vs Ag/AgCl. The addition of DNA substrate causes the shift of this reduction peak to -140 +/- 10 mV vs Ag/AgCl.
J, Sun, D K, Solaiman
openaire   +2 more sources

A Cyclic Voltammetric Study of the Gold‐Oxygen System

Journal of The Electrochemical Society, 1984
Donnees sur les etudes de voltammetrie cyclique dans le cas d'un lit de microelectrodes d'or, dans des solutions de H 2 SO 4 1N et de HF1N agitees par N 2 , en fonction de la vitesse de balayage et du domaine de potentiels balaye. On montre que H 2 et O 2 sont tres legerement adsorbes sur Au et que rien n'est dissous dans le metal en masse. Ces faits
openaire   +1 more source

Cyclic voltammetric studies of hafnium and zirconium phthalocyanines

Synthetic Metals, 1994
Abstract Cyclic voltammograms of (OH) 2 HfPc(Cl) and (OH) 2 ZrPc(Cl) (Pc(-2) = phthalocyanine dianion) show one oxidation couple and two reduction couples in the presence of a variety of solvent-electrolyte systems. All redox processes are centred on the phthalocyanine ring rather than the metal.
openaire   +1 more source

Correction. Acquisition and Analysis of Cyclic Voltammetric Data.

Analytical Chemistry, 1974
P. E. Whitson, H. W. VandenBorn, D. H. Evans   +2 more
openaire   +1 more source