Wipe-off test device

Details Wipe-off test device Wipe-off test device

1983-06-03

1985-09-24

Turk, Arnold

Chemistry: analytical and immunological testing

Optical result

With reagent in absorbent or bibulous substrate

422 56, 427 2, 435 14, 435805, G01N 3352, G01N 2178

Patent

active

045433380

ABSTRACT:
A test device for determining the presence of a substance in a test sample is disclosed, as well as methods for making and using it. The device comprises a support member having a reagent layer affixed to it which contains a reagent system which produces a detectable response in the presence of the analyte. The reagent layer has an upper layer affixed to the side opposite the support member. The upper layer comprises a polymer which is at least partially crosslinked.
The method of use comprises contacting the device with the test sample, wiping the upper layer free of test sample residue, and observing a detectable response.

REFERENCES:
patent: 3092465 (1963-06-01), Adams, Jr. et al.
patent: 3298789 (1967-01-01), Mast
patent: 3630957 (1971-12-01), Rey et al.
patent: 4015462 (1977-04-01), Greyson et al.
patent: 4278439 (1981-07-01), White
patent: 4301115 (1981-11-01), Rapkin et al.

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