Chromogenic calix[4]arene as ionophore for potentiometric and optical sensors

K Tóth; B T Thu Lan; J Jeney; M Horváth; I Bitter; A Grün; B Agai; L Tódke

doi:10.1016/0039-9140(94)e0094-8

Chromogenic calix[4]arene as ionophore for potentiometric and optical sensors

Talanta. 1994 Jun;41(6):1041-9. doi: 10.1016/0039-9140(94)e0094-8.

Authors

K Tóth¹, B T Thu Lan, J Jeney, M Horváth, I Bitter, A Grün, B Agai, L Tódke

Affiliation

¹ Research Group for Technical Analytical Chemistry of the Hungarian Academy of Sciences, Institute for General and Analytical Chemistry, Technical University, Budapest, Hungary.

PMID: 18966034
DOI: 10.1016/0039-9140(94)e0094-8

Abstract

Chromogenic calix[4]arene derivative was synthesized and tested as an ionophore for potentiometric and optical sensors. Distinct sodium selectivity was observed with this ionophore based, plasticized PVC membranes in potentiometric measurements suggesting their utility for biological applications. Optode membranes exhibited sodium sensitivity in the 5 x 10(-2) -10(-4)M concentration range. The optical sensitivity was improved by the use of an internal, lipophilic base (TDDA). The operation of the optical sensor is in accordance with the ion-exchange theory.