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The Differential Pulse Voltammetry method (DPV) measures the difference in current before and after a voltammetric pulse. The parameters specify both an output pulse waveform and input sampling. The “pre-pulse width” and “post-pulse width” describe, with respect to the pulse, when the sampling of the “before” (background) current and “after” current should occur. The following…

The AfterMath version can be determined from the “Help→About” menu item. That information can be compared with the descriptions below. As of 09-SEP-2013: Users of WaveNow family potentiostats (WaveNow, WaveNano, WaveNowXV) Versions earlier than 1.2.5033 – RECOMMENDED update download here Versions earlier than 1.2.5342 – OPTIONAL update download here Users of WaveDriver family (bi)potentiostats (WaveDriver…

Follow the steps below to use the Dummy Cell to perform cyclic voltammetry.

Zero Resistance Ammeter is a technique that converts a current between the working and counter electrodes with the application of a “zero” voltage to the cell. A typical use for this technique is the investigation of corrosion on a surface. Links: Electrochemist's Guide, AfterMath User's Guide, AfterMath Main Support Page Related Techniques: Controlled Potential Bulk…

The purpose of this webpage is to show the effect of choosing the wrong electrode range for an experiment. This example is from cyclic voltammetry but is applicable to any technique that sweeps the potential of the working electrode. Consider a 1 mM solution of K3Fe(CN)6 in 0.1 M KCl (3 mm disc GC working…