Roche Diabetes Care, Inc.

F. Hoffmann-La Roche Ag

Alexander Ibach

Yilmaz Isgoeren

Wolfgang Schick

Kai Kuellmer

Christian Ringemann

Peter Stephan

Coating compositions are described that include one or more rare metal components, such as rare alkali metal components, as well as diagnostics test elements that incorporate the same. Methods also are described for determining an amount of a dried coating composition in a coat based upon the rare metal components.

Rare metals as components of coatings in diagnostic test elements and methods of determining an amount/quality of dried compositions in such coatings

The invention concerns a method and an apparatus for determining the concentration of an analyte in a body fluid, where the following measures are proposed: providing a layered test element () including an enzyme-based chemistry layer which is responsive to the analyte by a color change, applying a sample of the body fluid onto the test element (), detecting by means of a photometric reflectance measuring device () a reflectance value of the test element (), correcting the measured reflectance value by a predetermined offset value attributed to the test element (), determining a concentration value of the analyte using the offset-corrected reflectance value.

Method and apparatus for determining the concentration of an analyte in a body fluid

The present invention pertains to the field of manufacture of diagnostic test elements. Specifically, the invention relates to a diagnostic test element for determining an analyte comprised in a body fluid sample, said test element comprising at least one test field with at least one detection layer and at least one separation layer, wherein said at least one separation layer comprises dispersed SiOin an amount of about 1.0 to 1.6 g/m. The invention also relates to a coating composition being capable of forming a separation layer on a diagnostic test element of the present invention described above. Moreover, provided is a method for the manufacture of the diagnostic test element as well as the use of the diagnostic test element for determining the amount of an analyte, preferably, glucose, in a sample of a subject.

Growing community of inventors

Buehl, Germany

Alexander Ibach