Sensor element and method for making the same

Details Sensor element and method for making the same Sensor element and method for making the same

1992-10-14

1994-07-19

Johnston, Jill A.

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Means for analyzing liquid or solid sample

128634, 385 13, 427 212, 427 213, 422 8206, 422 8208, 436 68, 436166, G01N 2164

Patent

active

053307186

ABSTRACT:
A sensor element includes an analyte-permeable matrix which supports and maintains an emulsion of a sensing solution containing an analyte-sensitive indicator substance in a plurality of tiny vesicles. The sensing solution is immiscible with the matrix material, and contains a dye indicator which dissociates into two different species. The sensing solution is initially mixed with an agent which modifies the equilibrium of dissociation of the dye indicator for optimal sensitivity. The liquid matrix preferably includes a curing inhibitor to allow the matrix to remain liquid until applied to a sensing surface, such as the tip of an optical fiber. The sensing solution remains suspended in these homogeneously dispersed vesicles after the matrix solidifies.

REFERENCES:
patent: Re31879 (1985-05-01), Lubbers et al.
patent: 3904373 (1975-09-01), Harper
patent: 4003707 (1977-01-01), Lubbers et al.
patent: 4194877 (1980-03-01), Peterson
patent: 4200110 (1980-04-01), Peterson et al.
patent: 4344438 (1982-08-01), Schultz
patent: 4468229 (1984-08-01), Su
patent: 4557900 (1985-12-01), Heitzmann
patent: 4568518 (1986-02-01), Wolfbeis et al.
patent: 4657736 (1987-04-01), Marsoner et al.
patent: 4712865 (1987-12-01), Hsu et al.
patent: 4849172 (1989-07-01), Yafuso et al.
patent: 4867919 (1989-08-01), Yafuso et al.
patent: 4906249 (1990-03-01), Fogt et al.
patent: 4921589 (1990-05-01), Yates et al.
patent: 4925268 (1990-05-01), Iyer et al.
patent: 5219527 (1993-06-01), Hui et al.
patent: 5252494 (1993-10-01), Walt
G. G. Vurek; Fiber-Optic Carbon Dioxide Partial Pressure Sensor; Mar. 1983; PB83-189738.

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