All-solid-state Ag+-ISE based on [2.2.2]p,p,p-cyclophane

Johan Bobacka, T Lahtinen, J Nordman, S Haggstrom, K Rissanen, Andrzej Lewenstam, Ari Ivaska

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All-solid-state ion-selective electrodes (ISEs) based on two ionophores with similar structure, i.e., [2.2.2] p,p,p-cyclophane and [2.2.2]m,p,p-cyclophane, were prepared and investigated. The ion-selective membranes were composed of the corresponding ionophore (1%), potassium tetrakis(4-chlorophenyl)borate (0.5%), 2-nitrophenyl octyl ether (65-66%), and PVC (33%). The ion-selective membrane was placed on top of a layer of the ct inducting polymer, poly(3,4-ethylenedioxythiophene) (PEDOT), working as ion-to-electron transducer. The resulting all-solid-state ISEs were conditioned in 0.01 M AgNO3 and investigated as Ag+-ISEs. The results show that [2.2.2]p,p,p-cyclophane is much more selective to Ag+ than [2.2.2]m,p,p-cyclophane.
Original languageUndefined/Unknown
Pages (from-to)723–726
Number of pages4
Publication statusPublished - 2001
MoE publication typeA1 Journal article-refereed


  • silver ion
  • cyclophane
  • all-solid-state

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