KFDA Registration No : | 14-3216 |
CAT No : | DET10 |
TEST METHOD : | ELISA |
SAMPLE VOLUME : | 20 ul |
INCUBATION TIME : | 60'+10'RT |
STD RANGE : | 0-8 ng/ml |
INTENDED USE : Enzyme Immunoassay for quantitative determination of Triiodothyronine (T3) in human serum or plasma
The DIAKEY T3 ELISA is based on a competitive enzyme immunoassay (EIA). A measured amount of patient serum, and a constant amount of T3 conjugated with horseradish peroxidase are added the microtiter wells. During incubation, T3 and conjugated T3 compete for the limited binding sites on the anti-T3 antibody. After a 90 minutes incubation, the wells are washed 7 times by water to remove unbound T3 conjugate. A solution of TMB is then added and incubated for 10minutes. Resulting in the development of the blue color. The color development is stopped with the addition stop solution, and the absorbance is measured spectrophotometrically at 450nm. The intensity of the color formed is proportional to the amount of enzyme present and is inversely related to the amount of unlabeled T3 in the sample. By reference to a series of T3 standard assayed in the same way, the concentration of T3 in the unknown sample is quantified.