New Possibilities of Application of Cobalt Bis(dicarbollide) Anion as a Lipophilic Additive in Ion-Selective Electrode Membranes

Authors

  • Jiří Tutsch Department of Analytical Chemistry, Institute of Chemical Technology, Prague,
  • Martin Krondak Department of Analytical Chemistry, Institute of Chemical Technology, Prague,
  • Radko Volf Department of Analytical Chemistry, Institute of Chemical Technology, Prague,
  • Bohumír Grüner Institute of Inorganic Chemistry, Academy of Sciences of the Czech Republic, Prague
  • Vladimír Král Department of Analytical Chemistry, Institute of Chemical Technology, Prague,

Abstract

Selectivity and sensitivity of PVC membrane electrodes are dramatically influenced not only by a specific receptor but also, especially for neutral ionophores, by additional lipophilic coreceptor. We describe novel systems based on classic cation receptors and a highly lipophilic cobalt bis(1,2-dicarbollide), a bulky, weakly coordinating anion with delocalized charge. The function of the novel coreceptor is demonstrated by the use of dibenzo-18-crown-6 or dicyclohexano-18-crown-6 as ionophore in combination with a classic lipophilic additive and a cobalt bis(dicarbollide). The obtained data show its higher efficiency, which makes this coreceptor suitable for cation detection and development of novel sensors.

Downloads

Published

2005-04-15

How to Cite

Tutsch, J., Krondak, M., Volf, R., Grüner, B., & Král, V. (2005). New Possibilities of Application of Cobalt Bis(dicarbollide) Anion as a Lipophilic Additive in Ion-Selective Electrode Membranes. Chemické Listy, 99(3). Retrieved from http://ww.chemicke-listy.cz/ojs3/index.php/chemicke-listy/article/view/2065

Issue

Vol. 99 No. 3 (2005)

Section

Articles