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Method and apparatus using solid sensor electrode

  • US 3,929,609 A
  • Filed: 01/08/1975
  • Issued: 12/30/1975
  • Est. Priority Date: 01/31/1973
  • Status: Expired due to Term
First Claim
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1. In an electrochemical cell for electrochemically determining the end point of a titration reaction, said cell comprising a vessel adapted to contain a titrate, a reference electrode, and a noble metal electrode having a sensing surface exposed for direct contact with said titrate, said reference electrode and said noble metal electrode adapted to be in electrical communication through said titrate and electrically connected to an electrometer through a circuit external from said titrate;

  • the improvement wherein said noble metal electrode sensing surface comprises the composite, solid-state, fusion product of a mixture of noble metal powder and powdered glass, fused to inert substrate.

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