Test composition, device, and method
First Claim
1. A test composition for detecting the presence of a component in a sample comprisinga. a reactant system which, upon contact with said sample, interacts with said component to produce a detectable response, andb. an inhibitor system which, upon contact with said sample, prevents said reactant system from interacting with said component after elapse of a predetermined time.
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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.
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Citations
38 Claims
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1. A test composition for detecting the presence of a component in a sample comprising
a. a reactant system which, upon contact with said sample, interacts with said component to produce a detectable response, and b. an inhibitor system which, upon contact with said sample, prevents said reactant system from interacting with said component after elapse of a predetermined time.
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14. A test device for detecting the presence of a component in a sample comprising a carrier matrix incorporated with
a. a reactant system which, upon contact with said sample, interacts with said component to produce a detectable response, and b. an inhibitor system which, upon contact with the sample, prevents the reactant system from interacting with the component after elapse of a predetermined time.
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26. A method for detecting the presence of a component in a sample, the method comprising;
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a. contacting said sample with a carrier matrix incorporated with (i) a reactant system which, upon contact with said sample, interacts with said component to produce a detectable response, and (ii) an inhibitor system which, upon contact with said sample, prevents the reactant system from interacting with the component after a predetermined time, b. incubating the matrix, after contact with the said sample, for said predetermined time, and c. observing said detectable response. - View Dependent Claims (27, 28, 29, 30, 31, 32)
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33. A method for producing a test device for detecting the presence of a component in a sample which comprises incorporating a carrier matrix with
a. a reactant system which, when contacted with said sample containing said component, interacts therewith to produce a detectable response, and b. an inhibitor system which, on contact with said sample, prevents said reactant system from interacting with said component after a predetermined time.
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37. A method for producing a test device comprising incorporating with a carrier matrix having incorporated therewith a reactant system which, upon contacted with a sample containing a component whose presence is to be detected, interacts therewith to produce a color-change;
- an inhibitor system which, on contact with said sample, prevents said color-change production after a predetermined time.
- View Dependent Claims (38)
Specification