Volume-independent diagnostic test carrier and methods in...

G - Physics – 01 – N

Patent

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G01N 1/28 (2006.01) G01N 33/52 (2006.01)

Patent

CA 2210652

The present invention concerns a diagnostic test carrier (1) containing a supporting layer (2) with a detection layer (3) arranged thereon containing the reagents required to determine analyte in a liquid sample and a network (4) covering the detection layer (3) which is larger than the detection layer (3) and which is attached to the supporting layer (2), which is characterized in that the network (4) is hydrophilic but not capillary active on its own and an inert cover (5) made of sample-impermeable material is arranged over the areas (6) of the network that extend beyond the detection layer in such a way that a sample application site (7) remains free on the region of the network (4) covering the detection layer as well as the use of such a test carrier for the determination of analyte in a liquid. In addition the invention concerns a method for the determination of an analyte in a liquid sample with the aid of a test carrier according to the invention.

Dispositif porte-test pour diagnostic (1) comprenant : une couche de support (2) sur laquelle est placée une couche de détection (3) contenant les réactifs requis pour doser les analytes dans un échantillon de liquide; un réseau (4) couvrant la couche de détection (3) et de taille plus grande que celle-ci (3), qui est fixé à la couche de support (2). Le réseau (4) se caractérise par le fait qu'il est hydrophile mais non actif par lui-même du point du vue capillaire. Un revêtement inerte (5) d'un matériau imperméable à l'échantillon couvre les zones (6) du réseau qui dépassent la couche de détection de façon qu'une zone d'application de l'échantillon (7) demeure libre dans la zone du réseau (4) couvrant la couche de détection. La présente invention porte également sur l'utilisation d'un tel dispositif porte-test pour déterminer les analytes dans un liquide et traite d'une méthode de dosage de ces substances.

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