Commonwealth Scientific and Industrial Research Organisation

David Simon Macedo

Colin David Wood

Miao Chen

Mikko Vepsäläinen

Durga Prasad Acharya

Mikko Kalevi Vepsäläinen

Mikko Kalevi Vepsalainen

The invention provides a solid state reference electrode comprising: a reference element in ionic communication with a composite, the composite comprising a water-permeable polymeric matrix loaded with a solid inorganic salt comprising a reference anion; an electrode surface for contacting an analyte; and a solid ion-exchange material located between the electrode surface and the reference element, the solid ion-exchange material comprising one or more non-interfering ions, wherein in use the solid ionexchange material immobilises one or more interfering ions, when present in solution in the analyte, by exchange with the noninterfering ions.

Interference resistant solid state reference electrode

The invention provides a solid state reference electrode comprising a reference element embedded in an electrochemically active composite, the electrochemically active composite comprising a polymeric matrix loaded with a solid inorganic salt, wherein the polymeric matrix comprises a cross-linked vinyl polymer of a vinyl monomer containing a heteroatom.

Solid state reference electrode

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Blackburn South, Australia

David Simon Macedo