AffiELISA® Pan FK506 Kit: High Sensitivity Tacrolimus ELISA Detection

The AffiELISA® Pan FK506 Kit uses competitive inhibition enzyme immunoassay technique. The provided microtiter plate comes pre-coated with Tacrolimus (FK506) protein. To perform the assay, standards or samples are added to designated wells on the microtiter plate. Subsequently, a biotin-conjugated antibody specific to Tacrolimus (FK506) is introduced. Avidin conjugated to Horseradish Peroxidase (HRP) is then added to each well, followed by an incubation period. Afterward, the TMB substrate solution is added, initiating an enzyme-substrate reaction. To conclude the reaction, a sulphuric acid solution is introduced, causing a color change that can be measured spectrophotometrically at a wavelength of 450nm ± 10nm. By comparing the optical density (OD) of the samples to the standard curve, the concentration of Tacrolimus (FK506) in the samples can be determined.