Test device containing an immunoassay filter with a flow-delayin

Details Test device containing an immunoassay filter with a flow-delayin Test device containing an immunoassay filter with a flow-delayin

1987-09-18

1990-05-08

Hill, Jr., Robert J.

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Calorimeter

210506, 422 61, 422101, 435 7, 436807, G01N 3353, B01L 1100

Patent

active

049236806

ABSTRACT:
There is disclosed a filter and a device positioning the filter between an upper and a lower chamber, particularly useful in an immunoassay. The filter and device are improved in that the membrane comprising the filter is overcoated with at least one water-soluble polymer of a type, a molecular weight, and at a dry-solids coverage effective to create for that membrane an induction time at room temperature of at least about 30 seconds and no greater than about 300 seconds, for a liquid head of pressure of about 6 mm of water.

REFERENCES:
patent: 2926088 (1960-02-01), Spiselman
patent: 3272742 (1966-09-01), Polishhuk
patent: 3888629 (1975-06-01), Bagshawe
patent: 4522923 (1985-06-01), Deutsch
patent: 4587102 (1986-05-01), Nagatomo
patent: 4615983 (1986-10-01), Koyama
patent: 4615985 (1986-10-01), Deutsch
patent: 4618533 (1986-10-01), Steuck
patent: 4632901 (1986-12-01), Valkirs
patent: 4681782 (1987-07-01), Ozkan
patent: 4727019 (1988-02-01), Valkirs

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