Premium
Advances in the Study of Ion Transfer at Liquid Membranes with Two Polarized Interfaces by Square Wave Voltammetry
Author(s) -
Molina A.,
Ortuño J. A.,
Serna C.,
Torralba E.,
Gonzalez J.
Publication year - 2010
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.200900593
Subject(s) - polarizability , voltammetry , ion , square wave , square (algebra) , chemistry , analytical chemistry (journal) , membrane , liquid liquid , cyclic voltammetry , ammonium , inorganic chemistry , chemical physics , electrochemistry , electrode , chromatography , physics , molecule , organic chemistry , quantum mechanics , biochemistry , geometry , mathematics , voltage
A general analytical expression has been deduced for the I/E response of the square wave voltammetry corresponding to ion transfer processes in systems with two liquid/liquid polarized interfaces. This expression has been evaluated through the experimental study of a series of quaternary ammonium cations and metal chloro complex anions. We have found that systems with two liquid/liquid polarizable interfaces present the striking advantage that the difference between peak potentials of square wave voltammograms of cations and anions with similar standard ion transfer potential is much greater than in systems with a single polarizable one.