Potentiometric CO.sub.2 sensor having an open titanate- or stannate-based reference electrode

US5910239A · kind A · utility

Assignee

• Max-Planck-Gesellschaft · DE

Inventors

• Joachim Maier · Wiernsheim, DE
• Werner Sitte · Graz, AT
• Michael Holzinger · Chartreuse de Currière, FR

Key dates

• Filing date: Dec 23, 1996
• Grant date: Jun 8, 1999
• Expiry date: Dec 23, 2016

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N27/4076
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

The invention relates to a a reference electrode for electrolytic cells, comprising a combination of (a) titanium dioxide and an alkali-metal or alkaline-earth-metal titanate or (b) tin dioxide and an alkali-metal or alkaline-earth-metal stannate as a homogeneous mixture.