| 摘要 |
<p>Analysis system for determining an analyte in a liquid sample, in particular a body fluid, by means of a specific binding reaction between two bioaffinic binding partners, one of which is substrate-immobilised and the other is free. The system comprises analysis elements (10) in whose test region (13) the substrate-immobilised binding partner is immobilised and an evaluation instrument (1) embodying an optical reflection measuring device for detecting the change in layer thickness resulting from the binding of the free binding partner to the substrate-immobilised binding partner. An increase in the measurement accuracy is achieved if the test region (13) has spatially separated subregions (14, 15) having varying binding activities of the substrate-immobilised binding partner and the optical reflection measuring device detects the subregions (14, 15) in a spatially differentiated manner, the measured values obtained from the subregions (14, 15) being compared with one another. <IMAGE></p> |
