Species:

Universal

Alternative Name:

FTI

Assay Type:

Competitive

unit:

pg/mL

Standard:

90 pg/mL

Sensitivity:

0.48 pg/mL

Detection Range:

1.41-90 pg/mL

Assay Time:

1.5H

Sample Type:

Serum, Plasma, Tissue homogenates, Cell lysates, Cell culture supernates and Other biological fluids

Research:

Signal transduction;

Test Principle:

This ELISA kit uses the Competitive-ELISA principle. The micro ELISA plate provided in this kit has been pre-coated with fT4. Standards or samples are added to the appropriate micro ELISA plate wells then with a biotin-conjugated antibody specific to fT4. Next,Avidin conjugated to Horseradish Peroxidase (HRP) is added to each microplate well and incubated. After TMB substrate solution is added. The enzyme-substrate reaction is terminated by the addition of sulphuric acid solution and the color change is measured spectrophotometrically at a wavelength of 450nm ± 10nm. The concentration of fT4 in the samples is then determined by comparing the OD of the samples to the standard curve.