Carrier for colorimetrically detecting a gas

Details Carrier for colorimetrically detecting a gas Carrier for colorimetrically detecting a gas

1994-02-10

1995-05-16

Snay, Jeffrey R.

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Calorimeter

422 58, 422 86, 422 87, G01N 2178

Patent

active

054158389

ABSTRACT:
One or more reaction zones are formed as channels in a carrier. Each reaction zone is lined with a color indicator and the carrier is improved in that a coating of the reaction zone is realized wherein the coatings are individually changeable and the coating is easily carried out with uniform coating density and, if required, with different indicators. This is achieved with a carrier which is configured as a sandwich-like composite foil which includes a reagent carrier foil which, in turn, is made of a special plastic material. This plastic material can be perfluoroethylene propylene (FEF) which is surface treated by a corona discharge and is then known as FEPc. An especially advantageous embodiment for the reaction zones on the reaction carrier foil is that the reaction partners are applied to the reagent carrier foil in the form of a point matrix applied by a microdrop generator.

REFERENCES:
patent: 3676181 (1972-07-01), Kowalewski
patent: 4421719 (1983-12-01), Burleigh
patent: 4472353 (1984-09-01), Moore
patent: 4505985 (1985-03-01), Schmidt et al.
patent: 4877683 (1989-10-01), Bragaw, Jr. et al.
patent: 4986110 (1991-01-01), Voss
patent: 5089232 (1992-02-01), May
patent: 5147606 (1992-09-01), Charlton et al.
patent: 5364593 (1994-11-01), Mihaylov et al.
"Flussigkeiten mikrofein dosieren", by M. Doring, Feinwerktechnik & Messtechnik, vol. 99, No. 11 (1991), pp. 459 to 463.

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