Test-device for threshold glucose detection in urine
First Claim
1. A dry chemistry device for glucose detection and quantification in urine, said device comprisinga chromogenic indicator mixture comprising a first indicator capable of color development to indicate the presence of a low-to-medium concentration of glucose, and a second indicator capable of color development to indicate the presence of a higher concentration of glucose, wherein the first indicator prevents color development of the second indicator unless the higher concentration of glucose is present in the urine, wherein the chromogenic indicator mixture further comprises a non-chromogenic scavenger that interferes with color development of the first indicator when glucose levels are below a threshold concentration of glucose;
- and a carrier impregnated with the chromogenic indicator mixture.
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Abstract
Devices and test kits are provided for glucose detection and quantification in urine. The devices and kits comprise a chromogenic indicator mixture comprising a first indicator capable of color development to indicate the presence of a low-to-medium concentration of glucose, a second indicator capable of color development to indicate the presence of a higher concentration of glucose, wherein the first indicator prevents color development of the second indicator unless the higher concentration of glucose is present in the urine, and a non-chromogenic scavenger that interferes with color development of the first indicator when glucose levels are below a threshold concentration, and a carrier impregnated with the chromogenic indicator mixture.
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Citations
21 Claims
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1. A dry chemistry device for glucose detection and quantification in urine, said device comprising
a chromogenic indicator mixture comprising a first indicator capable of color development to indicate the presence of a low-to-medium concentration of glucose, and a second indicator capable of color development to indicate the presence of a higher concentration of glucose, wherein the first indicator prevents color development of the second indicator unless the higher concentration of glucose is present in the urine, wherein the chromogenic indicator mixture further comprises a non-chromogenic scavenger that interferes with color development of the first indicator when glucose levels are below a threshold concentration of glucose; - and a carrier impregnated with the chromogenic indicator mixture.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A device for detection and quantification of glucose in urine comprising:
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a chromogenic indicator mixture comprising a first chromogenic indicator reagent combination capable of color development to indicate the presence of a lower concentration of glucose, and a second chromogenic indicator reagent combination capable of color development to indicate the presence of a higher concentration of glucose, wherein the first chromogenic indicator prevents color development of the second chromogenic indicator unless the higher concentration of glucose is present, a scavenger that prevents color development of the first indicator reagent composition unless a threshold concentration of glucose is present, and a matrix impregnated with the chromogenic indicator mixture. - View Dependent Claims (17)
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18. A test kit for determining the concentration of glucose present in a sample of animal urine comprising
a substrate impregnated with a chromogenic indicator mixture comprising a first indicator capable of color development to indicate the presence of a lower concentration of glucose, and a second indicator capable of color development to indicate the presence of a higher concentration of glucose, wherein the first indicator prevents color development of the second indicator unless the higher concentration of glucose is present in the urine sample; - wherein the substrate is further impregnated with a scavenger that prevents color development of the first indicator unless a threshold concentration of glucose is present in the urine; and
a color chart indicating urine glucose concentrations corresponding to a plurality of discernible colors. - View Dependent Claims (19, 20, 21)
- wherein the substrate is further impregnated with a scavenger that prevents color development of the first indicator unless a threshold concentration of glucose is present in the urine; and
Specification