Multi-layered test card for the determination of substances in l

Details Multi-layered test card for the determination of substances in l Multi-layered test card for the determination of substances in l

1988-12-30

1993-04-13

Kepplinger, Esther L.

Chemistry: analytical and immunological testing

Involving an insoluble carrier for immobilizing immunochemicals

Carrier is inorganic

436518, 436810, 436531, 435174, 435970, 422100, 422 56, 422 58, G01N 33553

Patent

active

052022684

ABSTRACT:
A composite device for detecting or determining the presence of components in liquids is described. The device has, in combination at least a first and a second layer of porous material in contact with each other, at least one sample receiving site in said device and at least one reaction site connected to the sample receiving site via the second layer. A pre-determined liquid flow path in and through said layer is defined by liquid barrier means located in said layers whereby liquid deposited at the sample site is transferred to the reaction site along a path from one member to the other.

REFERENCES:
patent: 4323536 (1982-04-01), Columbus
patent: 4477575 (1984-10-01), Vogel et al.
patent: 4727019 (1988-02-01), Valkirs et al.
patent: 4775636 (1988-10-01), Moeremans et al.
patent: 4959305 (1990-09-01), Woodrum
patent: 4960691 (1990-10-01), Gordon et al.

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