Sodium ion sensitive microelectrode based on a p-tert-butylcalix[4]arene ethyl ester

Abstract : Planar sodium-selective potentiometric microelectrodes with a conducting polymer (polypyrrole doped with cobaltabis(dicarbollide) ions ([3,3'-Co(1,2-C2B9H11)2]-)) as solid contact layer between the polymeric sensitive membrane and the platinum substrate have been constructed. The p-tert-butylcalix[4]arene ethyl ester was used as ionophore for sodium recognition. The microelectrode shows a linear response for Na+ concentrations between 3.0×10-6 M and 1.0×10-1 M with a Nernstian slope of 58.65 ± 2 mV per decade and a detection limit of 1.45×10-6 M. The response time was 14 s, and the electrode is suitable for use within the pH range of 3-10.
Document type :
Journal articles
Complete list of metadatas

https://hal-ujm.archives-ouvertes.fr/ujm-00350754
Contributor : Francis Vocanson <>
Submitted on : Wednesday, January 7, 2009 - 3:59:33 PM
Last modification on : Monday, July 8, 2019 - 4:16:16 PM

Identifiers

  • HAL Id : ujm-00350754, version 1

Collections

Citation

I. Marques de Oliveira, D. Risco, F. Vocanson, E. Crespo, F. Teixidor, et al.. Sodium ion sensitive microelectrode based on a p-tert-butylcalix[4]arene ethyl ester. Sensors and Actuators B: Chemical, Elsevier, 2008, 130 (1), pp.295. ⟨ujm-00350754⟩

Share

Metrics

Record views

87