Diastix  Glucose  Test  Strips

Semi quantitative test for glucose. Pack of 50 Diastix strips incorporating a reagent area that tests specifically for glucose and changes colour if glucose is present in solution. 

Testing is carried out at room temperature and the colour of the reagent area at 30 seconds after wetting is compared to the colour chart on the bottle label.

Results are obtained directly from comparison to the colour chart.  Each colour block represents a range of values.  The colour blocks represent nominal values; actual values will vary around the nominal values.  Results are read from the colour chart as negative or varying degrees of positive which indicate the relative amounts of glucose present.  Colour blocks are designated as:

Negative,  5.5mmol/L (100mg/dL),  14mmol/L (250mg/dL),  28mmol/L (500mg/dL),  56mmol/L (1000mg/dL),  and  111mmol/L (2000mg/dL) or more.

Chemical Principles of Procedure

This test is based on a double sequential enzyme reaction.  One enzyme, 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 a potassium iodide chromogen to oxidize the chromogen to colours ranging from green to brown.