Multi-layered test card for the determination of substances...

Details Multi-layered test card for the determination of substances... Multi-layered test card for the determination of substances...

G - Physics

01

N

167/44

G01N 33/543 (2006.01)

Patent

CA 2010569

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. - 21 -

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