Chemistry: analytical and immunological testing – Optical result – With reagent in absorbent or bibulous substrate
Reexamination Certificate
2008-01-25
2010-06-15
Gakh, Yelena G (Department: 1797)
Chemistry: analytical and immunological testing
Optical result
With reagent in absorbent or bibulous substrate
C436S164000, C436S008000
Reexamination Certificate
active
07736904
ABSTRACT:
The present invention pertains to a method for verifying usability of a test element on the basis of the relation of at least one control parameter measurable from the blank test field of a test element to a standard value for the at least one control parameter. In one embodiment, the method comprises determining the deviation between a first ratio calculated from a blank-field reference value measured for the control parameter and a first standard value, and a second ratio calculated from a blank-field control value and the first standard value, and rejecting a test element if the deviation is not within a predetermined tolerance range for the deviation.
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Albrecht Gertrud
Gaa Otto
Loch-Leroux Dieter
Barnes & Thornburg LLP
Gakh Yelena G
Roche Diagnostics Operations Inc.
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