Patent ID: 8617366
Filing Date: 2013-12-31
Classification: C12Q,G01N

Abstract:
1. A disposable urea sensor comprising: a laminated body having a fluid sample inlet end and an electrical contact end, said laminated body includes a base layer, a reagent holding layer with cutouts defining a working electrode and a reference electrode, a channel forming layer and a cover; a fluid sample inlet at said fluid sample inlet end; a substantially flat sample chamber in communication between said fluid sample inlet and a vent opening wherein said sample chamber is adapted to collect a fluid sample through said fluid sample inlet, said substantially flat sample chamber defined by said base layer, said reagent holding layer, said channel forming layer and said cover; a working electrode and a reference electrode within said sample chamber; and a dissolvable mixture of a reagent matrix disposed directly on said working electrode wherein said reagent matrix contains urease but absent any redox mediator and a dissolvable mixture of a reference matrix disposed directly on said reference electrode wherein said reference matrix contains a redox mediator.