Test composition, device, and method

Details Test composition, device, and method Test composition, device, and method

1976-09-17

1977-07-26

Reese, Robert M.

Chemistry: physical processes

Physical processes

Crystallization

23253TP, 252408, G01N 3122, G01N 3316

Patent

active

040384853

ABSTRACT:
A test device, test composition, and method are disclosed for determining the presence of a component in a sample. The device comprises a carrier matrix incorporated with a reactant system which produces a detectable response upon contact with the sample component. After a predetermined time interval elapses, the production of the detectable response is terminated by an inhibitor system also incorporated with the matrix. The test composition comprises the reactant and inhibitor systems. The method of use comprises contacting the test device with a test sample suspected of containing the component, permitting a predetermined time to elapse after contacting, and observing any detectable response produced.

REFERENCES:
patent: 3486981 (1969-12-01), Speck
patent: 3867518 (1975-02-01), Coffey et al.
patent: 3990849 (1976-11-01), Lee et al.

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