Flow-through sandwich pvc matrix membrane electrode for flow injection analysis

S. Aleqgret, J. A. Alonso, J. Bartroli, J. M. Paulis

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56 Citations (Scopus)


A flow-through sandwich potentiometric detector for FIA in which a PVC membrane sensor is applied on a conductive epoxy support is described. It allows simple replacement of the membrane when exhausted or substituition of the sensor system and shows good mechanical and electric stability. The device can be easily included in a block with a location for the reference electrode. The detector was activated with a commercial sensor selective to nitrate and its behaviour in FIA was studied. A comparison of its perfomance with that of a nitrate selective electrode of classic shape constructed by the same technique is presented. © 1985, Taylor & Francis Group, LLC. All rights reserved.
Original languageEnglish
Pages (from-to)2291-2303
JournalAnalytical Letters
Issue number18
Publication statusPublished - 1 Jan 1985


  • conductive epoxy support electrode
  • flow injection analysis
  • flow-through electrode
  • Nitrate ion selective electrode
  • potentiometric selectivity coefficients
  • PVC membrane electrode
  • Reilley diagrams


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