Sodium ion sensitive microelectrode based on a p-tert-butylcalix[4]arene ethyl ester - Archive ouverte HAL Access content directly
Journal Articles Sensors and Actuators B: Chemical Year : 2008

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

(1) , (1) , (2) , (3) , (3) , (4) , (4) , (1) , (1)
1
2
3
4

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.
Not file

Dates and versions

ujm-00350754 , version 1 (07-01-2009)

Identifiers

  • HAL Id : ujm-00350754 , version 1

Cite

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, 2008, 130 (1), pp.295. ⟨ujm-00350754⟩
19 View
0 Download

Share

Gmail Facebook Twitter LinkedIn More