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

I. Marques de Oliveira 1 D. Risco 1 F. Vocanson 2 E. Crespo 3 F. Teixidor 3 N. Zine 4 J. Bausells 4 J. Samitier 1 Abdelhamid Errachid 1, *
* Corresponding author
1 Lab NanoBioEngn
2 LACE - Laboratoire d'Application de la Chimie à l'Environnement
3 ICMAB - Institut de Ciència de Materials de Barcelona
4 CNM - Centro Nacional de Microelectronica [Spain]
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.
Keywords : Sodium polypyrrole calix[4]arene Solid-state ion selective microelectrode Potentiometric
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https://hal-ujm.archives-ouvertes.fr/ujm-00350754
Contributor : Francis Vocanson Connect in order to contact the contributor
Submitted on : Wednesday, January 7, 2009 - 3:59:33 PM
Last modification on : Friday, September 10, 2021 - 1:52:10 PM

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  • HAL Id : ujm-00350754, version 1

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CNRS | UNIV-ST-ETIENNE | UNIV-LYON1 | UDL

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⟩

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