Method for the manufacture of a fluorescent chemical sensor for

Details Method for the manufacture of a fluorescent chemical sensor for Method for the manufacture of a fluorescent chemical sensor for

1992-03-31

1993-08-17

Gonzalez, Frank

Optical waveguides

Optical waveguide sensor

385128, 385141, 385147, 422 8208, 422 8211, G02B 602

Patent

active

052376311

ABSTRACT:
A method for the manufacture of an improved sensor element for determining the amount of oxygen in a sample, comprises the steps of: (a) mixing a fluorescent reagent with a silicone oil which has a molecular weight of 6,700 to 80,000 and most preferably in the range of between 15,000 and 30,000; (b) heating the mixture at a temperature in the range of between 150.degree. to 350.degree. C. and (c) adding an optical insulating material forming an optical insulating layer onto the fluorescent reagent. Optionally, a crosslinking agent is incorporated. In order to increase the efficiency of fluorescence, an additionally layer of light scattering material is inserted between the fluorescent reagent layer and that of the insulator.

REFERENCES:
patent: 4752115 (1988-06-01), Murray, Jr. et al.
patent: 4892383 (1990-01-01), Klainer et al.
patent: 4925268 (1990-05-01), Iyer et al.
patent: 5119463 (1992-06-01), Vurek et al.
patent: 5120510 (1992-06-01), Gourley et al.

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