Analytical element and method of use

Details Analytical element and method of use Analytical element and method of use

1982-09-20

1984-12-04

Turk, Arnold

Chemistry: analytical and immunological testing

Optical result

With reagent in absorbent or bibulous substrate

422 56, 422 57, 435805, G01N 2178, G01N 3352

Patent

active

044865376

ABSTRACT:
An analytical element comprising a light-transmissive and liquid-impervious support, at least one reagent layer containing at least one reagent which reacts with a component in a fluid sample and at least one development layer provided at a position on the reagent layer on the opposite side to that of the support for permitting the component in said fluid sample to permeate into the reagent layer, at least one layer of reagent layers being constituted of polymeric particulate units each having a core-shell multi-layer structure comprising a core, which is hydrophobic and substantially unswellable with a fluid sample, and a hydrophilic outer shell.

REFERENCES:
patent: 3992158 (1976-11-01), Przybylowicz et al.
patent: 4258001 (1981-03-01), Pierce et al.
patent: 4356149 (1982-10-01), Kitajima et al.

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