Adsorption of Sulfur on Dropping Mercury Electrode

Chronopotentiometric Measurement of Adsorption. Riboflavin on a Mercury Electrode

DSORPTION of the electroactive A species causes the value of the chronopotentiometric constant, ~ , , T ~ / ~ / C , to increase with decreasing transition times. This increase in i0r1'*/C is caused by the distribution of the current between electrolysis of the electroactive species diffusing to the electrode, for which T ~ ' ~ varies as l/&, and electrolysis of the electroactive species adsorbe...

Electroreduction of Some Diazine and Triazine Pesticides at the Dropping Mercury Electrode

Electroanalytical methods enable determination of electroactive species in nonhomogeneous systems, as limiting currents are little affected by the presence of solid and colloidal particles. An example of such applications of electrochemical methods are studies of binding of toxic substances, such as pesticides, on slightly soluble polymers, such as lignin. To successfully apply polarographic me...

Electrochemical Kinetic Measurements and Metal Speciation with the Vibrating Dropping Mercury Electrode

The vibrating dropping mercury ele·ctrode (VDME) is applied to the characterization of ionic species and to electroanalytical measurements of metal ion concentrations in water samples strongly polluted with different kinds of surface active substances (SAS). The Cd2+ /CdNTAsystem in citrate buffer solution at pH = 6 was chosen as a model for the effect of a preceeddng homogeneous chemical react...

Mercury Selective Electrode

The Study of Electrochemical Reduction of Ni(II)- Amino Acid and Pyrimidines Complexes at Dropping Mercury Electrode

The electrochemical studies of Ni(II) complexes with alanine, leucine, glycine, adenine, cytocine, uracil at constant ionic strength (μ=0.1) in aqueous alcohol, DMF and formamide mixture have been investigated. The reduction was diffusion controlled as evidenced from linear plots of id against h . The mechanism of reduction and effect of solvent, concentration, pH have been studied. Slope value...