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

I. Marques de Oliveira; D. Risco; F. Vocanson; E. Crespo; F. Teixidor; N. Zine; J. Bausells; J. Samitier; Abdelhamid Errachid

Journal articles

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

Document type :

Journal articles

Domain :

Chemical Sciences / Material chemistry

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https://hal-ujm.archives-ouvertes.fr/ujm-00350754
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Submitted on : Wednesday, January 7, 2009 - 3:59:33 PM
Last modification on : Friday, June 18, 2021 - 11:50:09 AM

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

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

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