Test device for the detection and determination of glucose
First Claim
1. A test strip for the detection and determination of the concentration of glucose in samples of body fluids containing in addition Albumin, blood pigments or Vitamin C as interferants comprising, a carrier strip capable of transporting fluid therealong and which is separated into three zones arranged one above the other in the order indicated:
- (a) a measuring zone for receiving a predetermined amount of the test sample impregnated with at least one member of the group consisting of marking agents, coloring agents, oxidation agents, buffers and precipitating agents for binding and elimination of interferants, (b) a reaction zone containing glucose oxidase that will catalyze the oxidation of a glucose substiate, and (c) a detection zone containing peroxidase and an indicator for providing a visible response for accurately determining the level of glucose in the test sample.
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Accused Products
Abstract
A test strip for the detection and determination of glucose in body fluids comprising a carrier demarcated into three zones (a) a measuring zone which is untreated, but may be impregnated with a coloring agent, oxidizing agent, buffer or precipitating agent, (b) a reaction zone containing glucose oxidase and (c) a detection zone composed of at least one strip containing peroxidase and an indicator. The paper test strip is preferably enclosed within a suitably dimensioned capillary tube which contains markings at the end thereof enclosing the measuring zone for limiting the amount of flow liquid to be admitted and additional markings at the end thereof enclosing the detection zone for quantitatively reporting the glucose content.
53 Citations
11 Claims
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1. A test strip for the detection and determination of the concentration of glucose in samples of body fluids containing in addition Albumin, blood pigments or Vitamin C as interferants comprising, a carrier strip capable of transporting fluid therealong and which is separated into three zones arranged one above the other in the order indicated:
- (a) a measuring zone for receiving a predetermined amount of the test sample impregnated with at least one member of the group consisting of marking agents, coloring agents, oxidation agents, buffers and precipitating agents for binding and elimination of interferants, (b) a reaction zone containing glucose oxidase that will catalyze the oxidation of a glucose substiate, and (c) a detection zone containing peroxidase and an indicator for providing a visible response for accurately determining the level of glucose in the test sample.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
Specification