Test strip for the assay of an analyte in a liquid sample
First Claim
1. A test strip for determining the presence or concentration of one or more predetermined analytes in a liquid test sample comprising:
- (a) a support handle;
(b) one or more test pads positioned on the support handle, each test pad comprising (i) a carrier matrix incorporating (ii) a reagent composition capable of interacting with a predetermined analyte to provide a detectable response; and
(c) an infrared dye positioned at a predetermined location on the test strip.
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Accused Products
Abstract
An improved test strip for determining the presence or concentration of unknown or a constituent in a liquid test sample is disclosed. The test strip comprises a support strip and a test pad, wherein the test pad includes a carrier matrix incorporating a reagent composition capable of interacting with the constituent of interest to produce a detectable or measurable response. The test strip further comprises an infrared dye, applied either to the support strip or incorporated into a test pad, which ensures proper alignment of the test strip in an apparatus having a detection system for the detectable or measurable response. The improved test strip reduces the number of erroneous assays for the constituent of interest.
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Citations
15 Claims
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1. A test strip for determining the presence or concentration of one or more predetermined analytes in a liquid test sample comprising:
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(a) a support handle;
(b) one or more test pads positioned on the support handle, each test pad comprising (i) a carrier matrix incorporating (ii) a reagent composition capable of interacting with a predetermined analyte to provide a detectable response; and
(c) an infrared dye positioned at a predetermined location on the test strip. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of monitoring alignment of a test strip in an optical pathway of a detection apparatus comprising:
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(a) providing a test strip, said test strip comprising (i) a support handle;
(ii) one or more test pads positioned on the support handle, each test pad comprising (i) a carrier matrix incorporating (ii) a reagent composition capable of interacting with a predetermined analyte to provide a detectable response; and
(iii) an infrared dye positioned at a predetermined location on the test strip;
(b) inserting the test strip in the detection apparatus;
(c) illuminating the predetermined location of the infrared dye on the test strip with infrared radiation;
(d) measuring a reflectance of infrared radiation from the predetermined location on the test strip; and
(e) correlating the reflectance measurement to the alignment of the test strip in the detection apparatus. - View Dependent Claims (12, 13, 14, 15)
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Specification