This test is based on a sequential enzyme reaction.
First, glucose oxidase catalyzes the formation of gluconic acid and hydrogen peroxide from the oxidation of glucose. A second enzyme, peroxidase, catalyzes the reaction of hydrogen peroxide with potassium iodide chromogen to oxidize the chromogen to colors ranging from blue through greenish-brown, and brown to dark-brown.
- Measuring Range : 0-2000 mg/dl
- Reading time: 30 sec
This test is based on the color change of the indicator tetrabromophenol blue. A positive reaction is indicated by a color change from yellow through green and then to greenish-blue. A negative reaction is indicated by a color change from yellow to yellow-green.
- Measuring Range : 0 - > 2000 mg/dl
- Reading time: 60 sec