Original scientific paper

A Comparison of Qualitative and Quantitative Methods used to Define the Resolution of Two Overlapping Reversible Processes in Second and Fundamental Harmonic Alternating Current Voltammetry

Andrzej Bobrowski ; Faculty of Analytical Chemistry, Academy of Mining and Metallurgy, 30-059 Krakow, Poland
Alan M. Bond ; Department of Chemistry, La Trobe University, Bundoora, Victoria, Australia 3083

Abstract

Different authors have reached different conclusions concerning the relative resolving power of the fundamental and second harmonic alternating current voltammetric (polarographic) techniques. In this paper, the different qualitative and quantitative methods used to define the resolution of two overlapping processes in alternating current voltammetry have been evaluated. With all qualitative definitions, resolution of the second harmonic method is confirmed to be marginally superior to the fundamental harmonic. However, quantitatively, the resolution achieved with either method is so similar that the relative order to resolving power reported has actually been determined by the definition of resolution used and subtle differences in the examples chosen to evaluate the resolution. Experimental data confirm that the similarities in the qualitative aspects of resolution are far more substantial than the differences.

Keywords

Hrčak ID:

137051

URI

https://hrcak.srce.hr/137051

Publication date:

1.3.1994.

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