Publication details

Elektrochemické eliminační metody

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Title in English Electrochemical Elimination Methods


Year of publication 2001
Type Article in Periodical
Magazine / Source CHEMICKÉ LISTY
MU Faculty or unit

Faculty of Science

Field Electrochemistry
Keywords Polarography; voltammetry;elimination polarography; elimination voltalmmetry; difusion; kinetic and charging currents; electroanalysis; kinetics of electrode processes
Description The article reviews two non-conventional electrochemical methods - Elimination Polarography (EP) and Elimination Voltammetry with Linear Scan (EVLS). The two methods enable the elimination of selected particular currents, contributing to the measured total current. The most frequently eliminated particular currents are the charging current (Ic), the diffusion current (Id), and the kinetic current (Ik). In EP, the elimination is achieved by a function obtained by linear combination of the direct current and its time derivative and/or time integral. In EVLS, the elimination is achieved by a function obtained by linear combination of total currents measured at different scan rates. Application of EP and EVLS enables detection of minor electrode processes overlapped by a major one. Both elimination methods improve the sensitivity of analytical determination of electroactive substances, and may contribute to solving problems associated with complex electrode processes.
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