Comparison of Semiintegral, Semidifferential, Direct Current Linear Sweep, Direct Current Derivative Linear Sweep, Pulse, and Related Voltammetric Methods by Computerized Instrumentation

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Abstract

Computerized instrumentation is used to demonstrate the considerable dependence of the semi-differentia!, semi-integral, and derivative techniques on the nature and data manipulation procedures undertaken on the dc current-voltage curve from which these measurements are derived. Provided that the dc linear sweep data are corrected for background current, differences in limits of detection in semi-differential, semi-integral, and derivative approaches are very small. However, altering the dc potential format from linear to staircase or pulsed ramps significantly improves the limit of detection. These techniques and those derived from them are therefore inherently superior to those derived from the linear potential-time ramp.

Original languageEnglish
Pages (from-to)1318-1322
Number of pages5
JournalAnalytical Chemistry
Volume52
Issue number8
DOIs
Publication statusPublished - 1 Jan 1980
Externally publishedYes

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