Copyright © Philip M. Parker, INSEAD. Terms of Use.
| Year | Description |
| 1991 | Invention patented by Lloyd A. Schick and Meitak T. Yip on May 12th, 1991. Abstract: A new and improved test device and method of determining the presence or concentration of a predetermined analyte, such as glucose, cholesterol or occult blood, in a test sample are disclosed. The test device includes a test pad comprising a suitable carrier matrix incorporating an indicator reagent composition capable of interacting with the predetermined analyte to produce a detectable or measurable response. In addition, the new and improved indicator reagent composition, comprising an indicator dye, such as a redox indicator, like a benzidine indicator; a redox mediator, such as an oxidase enzyme capable of interacting with the predetermined analyte and a peroxidase enzyme; a metal ion complex; and a cooxidant selected from the group consisting of bromate ion, chlorate ion, perchlorate ion, chromate ion, an organic oxidant like a peroxide, a hydroperoxide or a N-halo compound, and combinations thereof, is incorporated into the carrier matrix to provide a more accurate, ascorbate interference-resistant assay of a test sample for the predetermined analyte. |
| Source: selected by the editor from original sources. | |
Copyright © Philip M. Parker, INSEAD. Terms of Use.
