Diagnostic compositions and test indicators
First Claim
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4. A TEST DEVICE FOR DETECTING L-AMINO ACIDS IN FLUIDS CONTAINING ANIONS WHICH INHIBIT L-AMINO ACID OXIDASE ACTIVITY WHICH COMPRISES A BIBULOUS MATERIAL CONTAINING THEREIN A FIRST ZONE IMPREGNATED WITH A DIVALENT METAL CHLORIDE SELECTED FROM THE GROUP CONSISTING OF BARIUM CHLORIDE, MAGNESIUM CHLORIDE, CALCIUM CHLORIDE, CADMIUM CHLORIDE, STRONTIUM CHLORIDE AND LEAD CHLORIDE;
- AND IMMEDIATELY ADJACENT THERETO, A SECOND ZONE IMPREGNATED WITH A COMPOSITION COMPRISING L-AMINO ACID OXIDASE, A SUBSTANCE HAVING PEROXIDATIVE ACTIVITY, AND A COLOR INDICATOR WHICH IS RESPONSIVE IN THE PRESENCE OF HYDROGEN PEROXIDE AND THE MATERIAL HAVING PEROXIDATIVE ACTIVITY.
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4 Claims
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4. A TEST DEVICE FOR DETECTING L-AMINO ACIDS IN FLUIDS CONTAINING ANIONS WHICH INHIBIT L-AMINO ACID OXIDASE ACTIVITY WHICH COMPRISES A BIBULOUS MATERIAL CONTAINING THEREIN A FIRST ZONE IMPREGNATED WITH A DIVALENT METAL CHLORIDE SELECTED FROM THE GROUP CONSISTING OF BARIUM CHLORIDE, MAGNESIUM CHLORIDE, CALCIUM CHLORIDE, CADMIUM CHLORIDE, STRONTIUM CHLORIDE AND LEAD CHLORIDE;
- AND IMMEDIATELY ADJACENT THERETO, A SECOND ZONE IMPREGNATED WITH A COMPOSITION COMPRISING L-AMINO ACID OXIDASE, A SUBSTANCE HAVING PEROXIDATIVE ACTIVITY, AND A COLOR INDICATOR WHICH IS RESPONSIVE IN THE PRESENCE OF HYDROGEN PEROXIDE AND THE MATERIAL HAVING PEROXIDATIVE ACTIVITY.
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Current AssigneeRobert D. Artis
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Original AssigneeRobert D. Artis
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InventorsArtis, Robert D.
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Application NumberUS04/232,261Time in Patent Office1,212 DaysField of SearchUS Class Current435/28CPC Class CodesC12Q 1/26 involving oxidoreductaseC12Q 1/28 involving peroxidaseG01N 31/22 using chemical indicators G...Y10S 435/805 Test papersY10S 436/904 Oxidation - reduction indic...
