Quanticon Human IL-18(Interleukin 18) ELISA Kit

Principle

This assay employs the quantitative sandwich enzyme immunoassay technique. The micro plate provided in this kit has been pre-coated with an antibody specific to Human IL-18. Standards or samples are added to the appropriate microtiter plate wells then with a biotin-conjugated antibody specific to Human IL-18. Next, Avidin conjugated to Horseradish Peroxidase (HRP) is added to each microplate well and incubated. After TMB substrate solution is added, only those wells that contain Human IL-18, biotinconjugated antibody and enzyme-conjugated Avidin will exhibit a change in color. The enzyme-substrate reaction is terminated by the addition of stop solution and the color change is measured spectrophotometrically at a wavelength of 450nm±3nm. The concentration of IL-18 in the samples is then determined by comparing the OD of the samples to the standard curve.

Specification

PRECISION

Intra-assay Precision (Precision within an assay): 3 samples with low, mid range and high level were tested 20 times on one plate, respectively.

Inter-assay Precision (Precision between assays): 3 samples with low, mid range and high level were tested on 3 different plates, 20 replicates in each plate, respectively.

Intra-Assay: CV<5%

Inter-Assay: CV<8%