Characterization of an ion-selective polypyrrole coating and application to the joint determination of potassium, sodium and ammonium by electrochemical impedance spectroscopy and partial least squares method

A stable immobilization of ionophores (INPHs) was achieved by selectively electropolymerizing overoxidized pyrrol on the working electrode surface. The optimal conditions found allowed the immobilization of a huge amount of INPH which remained its recognition properties. A single sensing chip, conta...

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Veröffentlicht in:	Analytica chimica acta 2007-08, Vol.597 (2), p.231-237
Hauptverfasser:	Cortina-Puig, Montserrat, Muñoz-Berbel, Xavier, del Valle, Manuel, Muñoz, Francisco J., Alonso-Lomillo, M. Asunción
Format:	Artikel
Sprache:	eng
Schlagworte:	Analytical chemistry Chemistry Electronic tongue Exact sciences and technology Impedance measurements Ionophore-polypyrrole modified chip Partial least squares Spectrometric and optical methods
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