Eniricerche S.p.a.

Matteo Giongo

Massimo Battilotti

Giuseppina Mazzamurro

A process for obtaining a multifunctional, ion-selective-membrane sensor is disclosed, which process comprises the following steps:

Process for obtaining a multifunctional, ion-selective-membrane sensor

An ion sensor is disclosed, together with the relevant process for preparing it, which contains a polymeric organic matrix, a ionophore, a device based on semiconductors of EMOS or ISFET (CHEMFET) type containing at its surface silicon oxide adhering to said polymeric organic matrix by means of a polysiloxanic matrix, characterized in that the polysiloxanic matrix is selected from the organosilanes of general formula ##STR1## wherein: R.sup.II, R.sup.III, R.sup.IV, which may be either equal to, or different from, one another, are alkyl or alkoxy groups containing from 1 to 10 carbon atoms,

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Rome, Italy

Matteo Giongo