Diagnostic indicator

Claim 1

A METHOD OF PREPARING AN ARTICLE OF COMMERCE WHICH UPON RECONSTITUTION WITH WATER MAY BE USED FOR DETECTION OF MATERIALS THAT CAN BE REACTED WITH ATMOSPHERIC OXYGEN IN THE PRESENCE OF OXIDASE ENZYMES TO PRODUCE HYDROGEN PEROXIDE COMPRISING PREPARING A WATERPOLYGLCOL SOLUTION OF A CHROMOGEN WHICH UNDERGOES A COLOR REACTION IN THE PRESENCE OF REACTION PRODUCTS OF THE ENZYME REACTION, SAID POLYGLYCOL BEING ONE WHICH IS NORMALLY SOLID AT 40*C. AND SUBSTANTIALLY SOLUBLE IN WATER ABOVE ABOUT 20* C., LYOPHILIZING THE SOLUTION OF CHROMOGEN WHREBY A SUBSTANTIALLY WATER-FREE SOLID COMPOSITION CONSTITUTED BY A MINOR AMOUNT OF SAID CHROMOGEN AND A MAJOR AMOUNT OF SAID POLYGLYCOL ACTING AS SUPPORTING MEDIUM, IS OBTAINED, PREPARING OXIDASE ENZYME AND BUFFER SALT CAPABLE OF PRODUCING A PH IN THE RANGE BETWEEN ABOUT 4 AND ABOUT 7.5 AS A SEPARATE COMPOSITION AND BRINGING THE COMPOSITIONS TOGETHER INTO A SINGLE ARTICLE UNDER CONDITIONS MAINTAINING EACH AS DISTINCT ENTITIES.

Claim 2

A METHOD OF PREPARING AN ARTICLE OF COMMERCE WHICH UPON RECONSTITUTION WITH WATER MAY BE USED FOR DETECTION OF MATERIALS THAT CAN BE REACTED WITH ATMOSPHERIC OXYGEN IN THE PRESENCE OF OXIDASE ENZYMES TO PRODUCE HYDROGEN PEROXIDE COMPRISING PREPARING A WATERPOLYGLCOL SOLUTION OF A CHROMOGEN WHICH UNDERGOES A COLOR REACTION IN THE PRESENCE OF REACTION PRODUCTS OF THE ENZYME REACTION, SAID POLYGLYCOL BEING ONE WHICH IS NORMALLY SOLID AT 40*C. AND SUBSTANTIALLY SOLUBLE IN WATER ABOVE ABOUT 20* C., LYOPHILIZING THE SOLUTION OF CHROMOGEN WHREBY A SUBSTANTIALLY WATER-FREE SOLID COMPOSITION CONSTITUTED BY A MINOR AMOUNT OF SAID CHROMOGEN AND A MAJOR AMOUNT OF SAID POLYGLYCOL ACTING AS SUPPORTING MEDIUM, IS OBTAINED, PREPARING OXIDASE ENZYME AND BUFFER SALT CAPABLE OF PRODUCING A PH IN THE RANGE BETWEEN ABOUT 4 AND ABOUT 7.5 AS A SEPARATE COMPOSITION AND BRINGING THE COMPOSITIONS TOGETHER INTO A SINGLE ARTICLE UNDER CONDITIONS MAINTAINING EACH AS DISTINCT ENTITIES.