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Potentiometric electrochemical device for qualitative and quantitative analysis

  • US 5,376,254 A
  • Filed: 05/14/1993
  • Issued: 12/27/1994
  • Est. Priority Date: 05/14/1993
  • Status: Expired due to Fees
First Claim
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1. An improved ion selective electrode device for the potentiometric determination inorganic, organic and biological compounds in a liquid, said electrode comprising:

  • a. a reference electrode portion comprising a hollow electrode body in which is disposed an electrode in electrical communication with means for indicating potential and an electrolyte surrounding said electrode, said electrode portion including an electrically conductive bridge;

    b. an ion selective portion comprising a hollow body defining an interior, said interior including at least two immiscible phases selected from the group consisting of an reference solution phase comprising an aqueous solution of a micelle forming agent and an ion pair, an organic phase and a polymer composite phase, at least one of said organic and polymer composite phases containing an ion-pair; and

    c. said ion selective portion being affixed to said reference electrode portion for electrical communication between one of said phases and said reference electrode portion through said bridge.

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