AMPEROMETRIC DETECTION OF THE AMMONIUM ION BY FACILITATED ION TRANSFER ACROSS THE INTERFACE BETWEEN 2 IMMISCIBLE ELECTROLYTE-SOLUTIONS

Authors
OSBORNE MD GIRAULT HH
Citation
Md. Osborne et Hh. Girault, AMPEROMETRIC DETECTION OF THE AMMONIUM ION BY FACILITATED ION TRANSFER ACROSS THE INTERFACE BETWEEN 2 IMMISCIBLE ELECTROLYTE-SOLUTIONS, Electroanalysis, 7(5), 1995, pp. 425-434
Citations number
43
Categorie Soggetti
Chemistry Analytical
Journal title
Electroanalysis → ACNP
ISSN journal
10400397
Volume
7
Issue
5
Year of publication
1995
Pages
425 - 434
Database
ISI
SICI code
1040-0397(1995)7:5<425:ADOTAI>2.0.ZU;2-E
Abstract
Facilitated ion transfer reactions of the ammonium, potassium, and sod ium ions with the ionophores dibenzo-18-crown-6, nonactin, and valinom ycin were investigated at the water/1,2-dichloroethane interface. Asso ciation constants for the various reactions studied were calculated to determine the selectivity imparted by the ionophores on the transferr ing ions. Of the ionophores studied, nonactin was found to be the most selective towards the ammonium ion, with a calculated association con stant of 14.1.