Reference electrode for chemical sensors
AssigneeBASF SE
InventorsStefan Schwiegk, Klemens Mathauer, Gerhard Wegner, Bernd F. W. Hoffmann, Albrecht Vogel
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Abstract
The invention relates to a reference electrode for chemical sensors based on ion-selective field-effect transistors (CHEMFETs) in an electrolyte/insulator/semiconductor system. The reference electrode is essentially composed of a polyglutamate-coated insulator/semiconductor substrate or of a polyglutamate-coated phthalocyaninato-polysiloxane polymer film applied to an insulator/semiconductor substrate.
Claims6
A reference electrode for chemical sensors based on ion-selective field-effect transistors (CHEMFETs) which contain insulator/semiconductor substrates as such or coated with thin films of phthalocyaninato-polysiloxane polymers in an electrolyte/insulator/semiconductor (EIS) system, wherein the reference electrode consists essentially of an insulator/semiconductor substrate coated with polyglutamate, or an insulator/semiconductor substrate having thereon a phthaloxyaninato-polyisoloxane polymer film coated with polyglutamate.
Dependencies are inferred from the claim text.