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Polymeric compositions for ion-selective electrodes

  • US 6,432,296 B1
  • Filed: 08/30/2000
  • Issued: 08/13/2002
  • Est. Priority Date: 09/24/1999
  • Status: Expired due to Term
First Claim
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1. A dry-operative ion-selective electrode comprising:

  • a) an internal reference electrode comprising a water-soluble salt dispersed in a polymer consisting essentially of 60 to 99 weight percent of a monomer having at least one carboxyl group or salt thereof and 1 to 40 weight percent of a hydrophobic monomer; and

    b) a hydrophobic zone in contact with the internal reference electrode, said hydrophobic zone having distributed therein a carrier selective for the ion.

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