Nitrite detection technique
AssigneeKimberly-Clark Worldwide, Inc.
InventorsXuedong Song, Rosann Marie Matthews Kaylor
Life of this patent
Estimating the term…
Abstract
A diagnostic test kit for detecting the presence or absence of nitrites within a test sample is provided. The test kit comprises an aromatic primary amine that is capable of reacting with a nitrite to form a diazonium ion. The test kit also comprises a lateral flow device that comprises a chromatographic medium and an absorbent material that receives the test sample after flowing through the chromatographic medium. The chromatographic medium defines a detection zone within which is contained a detection reagent (e.g., nucleophilic aromatic amine) that is capable of reacting with the diazonium ion to form an indicator (e.g., azo compound). The indicator exhibits a color that is different than the color of the detection reagent.
Claims18
A diagnostic test kit for detecting the presence or absence of nitrites within a urine test sample, the test kit comprising:
- a reagent pad on which an aromatic primary amine is disposed that is capable of reacting with a nitrite or nitrite derivative in the urine test sample to form a diazonium ion;
- and
- a lateral flow device that is in fluid communication with the reagent pad and comprises:
- a porous membrane defining a discrete detection zone that is separate and distinct from the reagent pad and within which is contained a nucleophilic aromatic amine detection reagent, the detection reagent being capable of reacting with the diazonium ion to form an azo indicator, the azo indicator exhibiting a color that is different than the color of the detection reagent;
- and
- an absorbent material that receives the urine test sample after flowing through the porous membrane.
Dependencies are inferred from the claim text.