Theory of anodic stripping voltammetry at wall-jet electrodes. Simulation of spatially differential stripping and redeposition phenomena
Article Abstract:
The significance of the anodic stripping voltammetry (ASV) as an analytical technique for trace metals spurred scientific investigations on its application to hydrodynamic wall-jet electrodes. Simulations of ASV on these electrodes which exhibit grossly nonuniform accessibility patterns were performed. The data demonstrate that the electrodes enhanced the differential stripping of the Red film. Moreover, the observed redeposition of the electrodes were attributed to the increase in Ox levels resulting from the poor removal of the Ox from the solution.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 1998
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Anodic stripping voltammetry at hydrodynamic mercury electrodes. Square wave voltammetry: numerical theory for electrochemically reversible systems
Article Abstract:
The square wave voltammetry (SWV) was developed by numerical simulations using the time-dependent backward implicit method to study electrochemically reversible processes undergoing anodic stripping at hydrodynamic mercury electrodes. Results indicated that significant modifications of the current response can be observed compared with semi-infinite diffusion conditions when SWV is conducted under hydrodynamic conditions. The results were found to agree well with existing analytical theory.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 1998
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Square wave anodic stripping voltammetry at mercury-plated electrodes. Simulation of surface morphology effects on electrochemically reversible, irreversible, and quasi-reversible processes: Comparison of thin films and microdroplets
Article Abstract:
A general approach is developed for the numerical simulation of square wave anodic stripping voltammetry at hemispherical and uniform planar electrodes based on the backward implicit method. Data is presented for the nature of mercury on the surface of both iridium and copper substrates, obtained by atomic force microscopy.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2000
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