Oxygen sensing membranes and methods of making same

Details Oxygen sensing membranes and methods of making same Oxygen sensing membranes and methods of making same

1996-04-01

1999-01-26

Bonner, Melissa

Compositions

Organic luminescent material containing compositions

Synthetic resin containing

436136, 436135, 436172, 422 8206, 422 8207, 422 8209, G01N 3300, G01N 2164

Patent

active

058634606

ABSTRACT:
A polymeric sensing membrane having a Stern-Volmer constant within a pre-determined range of Stern-Volmer constants. The membrane includes a polymeric material having a fluorescent dye molecule dispersed therein. The dye molecule is capable of having its fluorescence collisionally quenched by a gas to be detected by the membrane. In one embodiment, the membrane includes a fluorescent dye molecule which has a relaxation time and a polymeric material having a permeability within a range of permeabilities defined by a mathematical function of the pre-determined range of Stern-Volmer constants. In another embodiment, the membrane includes a polymeric having a permeability and a fluorescent dye molecule having a relaxation time within a range of relaxation times defined by a mathematical function of the pre-determined range of Stern-Volmer constants.

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