Test for a given constituent in a liquid

Details Test for a given constituent in a liquid Test for a given constituent in a liquid

1974-11-08

1976-11-23

Scovronek, Joseph

Chemistry: physical processes

Physical processes

Crystallization

195127, C12K 110, G01N 3122, G01N 3316

Patent

active

039934519

ABSTRACT:
The device, for use in analysis of a sample of liquid material applied thereto, comprises a plastic film support having adhered to one surface thereof a reagent-containing layer, said reagent reacting with a component of said sample to produce a color change within said layer, said layer also containing reagent-free particles of hydrophilic, absorbent, porous, particulate material, adhered to said surface, and on the opposite side of said reagent-containing layer from said support, a layer of a porous medium through which some of the said component is transmitted to said reagent-containing layer.

REFERENCES:
patent: 2249867 (1941-07-01), Snelling
patent: 2785057 (1957-03-01), Schwab et al.
patent: 2918893 (1959-12-01), Norton
patent: 3002385 (1961-10-01), Wahl et al.
patent: 3018611 (1962-01-01), Biritz
patent: 3092465 (1963-06-01), Adams, Jr. et al.
patent: 3311084 (1967-03-01), Edenbaum
patent: 3552925 (1971-01-01), Fetter
patent: 3847553 (1974-11-01), Verbeck

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