Back to results
US 5,958,201 AGranted
Sodium ion-selective-electrode membrane having extended uselife
AssigneeDade Behring Inc.
InventorsAlan Robert Craig, Michael Patrick Reidy
Life of this patent
Estimating the term…
Abstract
A method for extending the uselife of a sodium ion selective membrane of an ISE sensor by incorporating water therein. Also provided are polymer compositions comprised of water plus the membrane compounds or residues and articles comprising such compositions.
Claims4
A ion-selective-electrode membrane paste for producing a membrane for determining the presence of sodium in fluids, the membrane paste comprising:
- a polymeric matrix;
- water between about 0.50 percent and 1.00 percent by weight;
- an ionophore selective for sodium;
- and,
- a silane coupling agent mixed uniformly within the paste, said coupling agent comprising glycidoxypropyltrimethoxysilane.
2 more elements
Dependencies are inferred from the claim text.