Ohmic drop effects in square-wave voltammetry response for an ion transfer process at a liquid–liquid interface

A.V. JUÀREZ; A.M. BARUZZI; L.M. YUDI

JOURNAL OF ELECTROANALYTICAL CHEMISTRY

Elsevier

Lugar: Lausanne - Suiza; Año: 2005 vol. 577 p. 281 - 281

0022-0728

font face="AdvPSTim" size="1"> The effect of ohmic drop on square-wave voltammetry experiments (SWV) at a liquid–liquid interface is analyzed. The study is based on the distortion of SW voltammetric profiles of the tetraethyl ammonium transfer process across the water/1,2-dichloroethane interface when an uncompensated resistance, RX, is present. Depending on the experimental conditions significant RX values arise as a consequence of the low electrical conductivity of the organic solvent characteristic of these systems, and efficient IR compensation is needed. When RX is not totally removed, a non-linear dependence of peak current