Test carrier and method for the analytical determination of a co

Details Test carrier and method for the analytical determination of a co Test carrier and method for the analytical determination of a co

1987-11-09

1989-06-13

Marantz, Sidney

Chemistry: analytical and immunological testing

Optical result

With reagent in absorbent or bibulous substrate

422 55, 422 56, 422 58, 435 16, 435 17, 435805, G01N 3352

Patent

active

048392979

ABSTRACT:
The present invention provides a test carrier (1) for the analytical determination of a component of a body fluid with a base layer (2) and at least two planar test layers which, in the initial state of the test carrier, before carrying out the determination, are separate from one another but can be brought into contact with one another by external manipulation, wherein a first test layer (8) and a second test layer (10) are arranged on the base layer essentially next to one another but separated in the initial state by a gap, a contact element (11, 17, 18, 20) being provided which consists of a capillary-active material which is so dimensioned that it can bridge the gap (12) and which is so mounted and arranged that, in a first position, it cannot contact at least one of the test layers (8, 10) but, by external pressure, it can be brought into a second position in which it contacts both test layers in such a manner that a liquid exchange between the test layers is possible.

REFERENCES:
patent: 3917453 (1975-11-01), Milligan
patent: 3933594 (1976-01-01), Milligan
patent: 3936357 (1976-02-01), Milligan
patent: 3992158 (1976-11-01), Przybylowicz et al.
patent: 4108729 (1978-08-01), Mennen
patent: 4223089 (1980-09-01), Rothe
patent: 4477575 (1984-10-01), Vogel et al.

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