Home diagnostic aid and method for determining the presence...

Details Home diagnostic aid and method for determining the presence... Home diagnostic aid and method for determining the presence...

G - Physics

01

N

150/11, 150/3

G01N 33/72 (2006.01)

Patent

CA 1200742

HOME DIAGNOSTIC AID AND METHOD FOR DETERMINING THE PRESENCE OF OCCULT BLOOD FOR USE BY THE GENERAL PUBLIC Abstract A guaiac reagent-based diagnostic aid for determining the presence of occult blood in an aqueous system contains a micron-sized silica gel into which a guaiac solution has been adsorbed. The guaiac-containing carrier is contacted with a dry, particulate, oxidizing agent, such as a monopersulfate compound, to form a single composition. This composition can be packaged in a water-pervious sandwich. Upon contact with water, the oxidizing agent is activated to produce hydrogen peroxide, which in the presence of occult blood will oxidize the adsorbed guaiac to a brilliant blue reaction product.

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