Biotin ELISA kits are assays designed to measure levels of Biotin-associated antigens in biological samples, such as plasma, serum, culture extracts, and cell lysates. Physiological levels of biotin can be measured in blood plasma and urine. Biotin affinity for avidin/streptavidin is harnessed for the purification or detection of biotinylated proteins or compounds. Biotin ELISA kits utilize microtiter plates coated with specific antibodies and conjugated detection enzymes. The assay will produce a detectable signal proportional to the amount of Biotin antigens found in the sample. Click on the ELISA products below and visit the supplier for more information, including assay sensitivity and target specificity.