Elektrochemické eliminační metody

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Title in English	Electrochemical Elimination Methods
Authors	TRNKOVÁ Libuše
Year of publication	2001
Type	Article in Periodical
Magazine / Source	CHEMICKÉ LISTY
MU Faculty or unit	Faculty of Science
Citation
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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