Migration of the sample zone driven by capillary forces in a porous carrier strip.
Notes: - During migration the dissolved tracer becomes distributed between capture and control zones with immobilised antibodies.
- The amount of the label compound in both zones depends on the concentration of the compound in the studied sample.
Example: The most common test of this type is the one for pregnancy.
Source:
PAC, 2018, 90, 1121. 'Terminology of bioanalytical methods (IUPAC Recommendations 2018)' on page 1141 (https://doi.org/10.1515/pac-2016-1120)