Enantiomer-selectivity of ion-selective electrodes based on a chiral crown-ether ionophore

Viola Horváth, Tímea Takács, George Horvai, Peter Huszthy, Jerald S. Bradshaw, Reed M. Izatt

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A newly synthesized crown ether ionophore can differentiate between R-(+) and S-(-)-1-phenylethylammonium ions when incorporated into a plasticized PVC based electrode membrane, thus providing enantiomer-selectivity. Different membrane compositions were studied. The selectivity coefficient found was 0.71, independent of the membrane composition. This proves the robustness of the ISE method for testing the enantiomeric selectivity of newly synthesized ionophores. Selectivities of the new ionophore towards different hydrophilic cations were also determined.

Original languageEnglish
Pages (from-to)1591-1609
Number of pages19
JournalAnalytical Letters
Issue number9
Publication statusPublished - Jan 1 1997



  • Chiral crown ether ionophore
  • Enantiomer-selectivity
  • Ion-selective electrodes

ASJC Scopus subject areas

  • Analytical Chemistry
  • Biochemistry
  • Spectroscopy
  • Clinical Biochemistry
  • Biochemistry, medical
  • Electrochemistry

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