Umano CXCL9 Kit Elisa (A542)

Human CXCL9 ELISA Kit

Sandwich (quantitative)

This CXCL9 enzyme linked immunosorbent assay (ELISA) applies a technique called a quantitative sandwich immunoassay. The microtiter plate has been pre-coated with an Anti-CXCL9 Antibody. Standards or samples are then added to the microtire plate wells and CXCL9, if present, will bind to the antibody pre-coated on the wells. In order to quantify the amount of CXCL9 present in the sample, Anti-CXCL9 Antibody (Biotin) is added to each well to "sandwich" the CXCL9 immobilised on the plate. The microtiter plate then undergoes incubation, followed by thorough washing of the wells to remove all unbound components. Next, Avidin-Biotin-Peroxidase Complex is added to each well for a short incubation period, followed by thorough washing of the wells to remove all unbound conjugates. Next, a TMB (3,3',5,5' tetramethyl-benzidine) substrate solution is added to each well. The enzyme (HRP) and substrate are allowed to react over a short incubation period. Only those wells that contain CXCL9 will exhibit a change in colour. The enzyme-substrate reaction is terminated by the addition of a stop solution and the colour change is measured spectrophotometrically at a wavelength of 450nm ± 2nm.

Microplate

Serum, plasma, body fluids, tissue lysates, and cell culture supernatants.

< 2 pg/ml

31.2-2000 pg/ml

Human

Intra-assay CV: < 8%, Inter-assay CV: < 10%

Store at 2-8°C for 4 months or at -20°C for 8 months.

Questo prodotto è solo per uso di ricerca. Non è inteso per uso diagnostico o terapeutico.