| abstract |
An integral multilayer element for chemical analysis utilizing an oxidase enzyme reaction system, which comprises in order:n (a) a porous spreading layer; (b) an oxygen-permeable, protein-impermeable light-blocking layer; (c) an oxidase-containing layer; (d) an indicator layer containing peroxidase and a hydrogen peroxide indicator showing detectable change in the presence of peroxidase and hydrogen peroxide; and (e) a water-impermeable, light-transmissive support. |