Patent ID: 7629175
Filing Date: 2009-12-08
Classification: C12Q,G01N,Y10T

Abstract:
1. A test element for the optical detection of an analyte comprising: a support having at least one transparent portion, and a one-layer film positioned on the support, the film comprising a reagent for the reflection photometric detection of the analyte and pigment particles, the film having a thickness when dry about 10 μm or less, wherein the test element comprises only one functional layer, and wherein the film comprises a mixture of fine-grained pigment particles having an average diameter of less than 0.5 μm with medium and/or coarse-grained particles, the average diameter of medium grain particles being between about 0.7 μm and about 4 μm and the average diameter of coarse-grained particles being between about 4 μm and about 8 μm.