Optical sensor membranes having improved barrier properties
AssigneeOptical Sensors Incorporated
InventorsLynn M. Kimball, Laura J. Bauer, William V. Fowler, Laurie E. Lynch
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Abstract
The present invention discloses novel polymer compositions comprising cellulose acrylamide, acrylamide and/or a fluorescent indicator species, and membranes made with these compositions. Optical pH sensors for monitoring the pH in a fluid sample, and methods for making such pH sensors are also disclosed. The pH sensors have reduced sensitivity to sample components that can interfere with pH measurements.
Claims12
A membrane comprising a polymerized or solvent-cast film of a copolymer of (a) a cellulose acrylamide, (b) acrylamide, and (c) a copolymerizable monomeric fluorescent indicator species.
Dependencies are inferred from the claim text.