Ratiometric fluorescence method of making for measuring oxygen

Details Ratiometric fluorescence method of making for measuring oxygen Ratiometric fluorescence method of making for measuring oxygen

1995-05-24

1998-03-17

Bhat, Nina

Coating processes

Optical element produced

Polarizer, windshield, optical fiber, projection screen, or...

436138, 436172, 422 8207, B05D 506, C03C 2502, G01N 2164

Patent

active

057284229

ABSTRACT:
A ratiometric optical sensors method of making is provided to measure dissolved oxygen in a fluid sample. The sensor is formulated so as to contain an oxygen permeable membrane of a cured perfluorinated urethane polymer and, incorporated therein, an oxygen-sensitive indicator component and a reference dye component. The emission spectrum from the indicator component is calibrated by comparison with that of the reference dye, which is substantially less sensitive to oxygen-quenching and which has a photodecomposition rate similar to the indicator component. Methods for making and using the membrane and sensor are provided as well.

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