Pseudopolarography of totally irreversible redox reactions

A Simulation of an Anion‐Induced Adsorption of Metal Ions in Pseudopolarography Using a Thin Mercury Film Covered Rotating Disk Electrode

“…This result suggests the conclusion that the influence of anion-induced adsorption of metal ions on pseudopolarographic half-wave potentials can be neglected, and that pseudopolarography can be used for the determination of stability constants of labile metal-ligand complex species regardless of their surface activity. The precision of this determination was discussed in the previous papers [3,6,7,9,11]. However, the assumption that the steady-state diffusion conditions are established in the very beginning of the accumulation period is not realistic.…”

Electrochemical Detection of Cadmium and Lead Complexes with Low Molecular Weight Organic Acids

“…However, the problem is more complicated and the detailed study is required. In a system approximating to a real environmental system in its complexity the kinetic parameters (e.g., with pseudopolarography [27]) could help to comprehend the environmental pattern of the system. Fig.…”

Speciation of trace metals in natural waters: The influence of an adsorbed layer of natural organic matter (NOM) on voltammetric behaviour of copper

“…The benefit of using pseudopolarography and a recently developed analogous technique, scanned (deposition potential) stripping chronopotentiometry (SSCP), is that obtained information about metal complexation are similar to classical polarography, but achieved at significantly lower metal concentrations [11,[22][23][24]. As it is theoretically described and experimentally verified, the complexation of a metal by a ligand will cause a (slight) shift of reduction wave of labile complexes towards more negative potentials, while the inert complexes are separately reduced at more negative potentials comparing to labile complexes [7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24]. The magnitude of these shifts (for both labile and inert complexes) is related to the stability constant of the formed complex and to the concentration of the free complexing ligand in the case of labile complexes.…”

“…The well-known pseudopolarographic approach in trace metal speciation [7][8][9][10][11][12][13][14][15][16][17][18][19][20] has recently attracted new attention due to the possibility to automate the process of recording of pseudopolarograms. The benefit of using pseudopolarography and a recently developed analogous technique, scanned (deposition potential) stripping chronopotentiometry (SSCP), is that obtained information about metal complexation are similar to classical polarography, but achieved at significantly lower metal concentrations [11,[22][23][24].…”