Affinity capillary electrophoretic study of K+/Na+ selectivity of hexaarylbenzene-based polyaromatic receptor

Authors

Sille Ehala, Academy of Sciences of the Czech Republic
Rajendra Rathore, Marquette UniversityFollow
Emanuel Makrlik, University of West Bohemia
Petr Toman, Academy of Sciences of the Czech Republic
Václav Kašička, Academy of Sciences of the Czech Republic

Document Type

Article

Language

eng

Publication Date

1-2010

Publisher

Elsevier

Source Publication

Procedia Chemistry

Source ISSN

1876-6196

Abstract

Affinity capillary electrophoretic (ACE) study has proved the selectivity of hexaarylbenzene-based polyaromatic receptor (R) for K+ ion over Na+ ion. The apparent binding constants of the R complexes with K+ and Na+ ions were determined from the dependence of effective electrophoretic mobility of R on the concentration of the above alkali metal ions in the background electrolyte using a non-linear regression analysis. The apparent binding constants (Kb) of the K-R+ and Na–R+ complexes in methanolic medium were evaluated as log Kb = 3.20 ± 0.22 for the K–R+ complex, and log Kb≅−0.7 for the Na–R+ complex.

Comments

Published version. Procedia Chemistry, Vol. 2, No. 1 (January, 2010): 14-19. DOI. © 2010 Elsevier. Used with permission.

Creative Commons License

This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 License.

Recommended Citation

Ehala, Sille; Rathore, Rajendra; Makrlik, Emanuel; Toman, Petr; and Kašička, Václav, "Affinity capillary electrophoretic study of K+/Na+ selectivity of hexaarylbenzene-based polyaromatic receptor" (2010). Chemistry Faculty Research and Publications. 903.
https://epublications.marquette.edu/chem_fac/903