Human IgA (Immunoglobulin A) ELISA Kit | ELK1255

Human IgA (Immunoglobulin A) ELISA Kit | ELK1255 | Gentaur UK, US & Europe Distribution

Alternative Names: Immunoglobulin A

Species: Human

Assay Type: Sandwich

Sensitivity: 0.07 ug/mL

Standard: 100 ug/mL

Detection Range: 1.57-100 ug/mL

Sample Type: serum, plasma, saliva and other biological fluids

Assay Lenght: 3.5h

Research Area: Infection immunity;Immune molecule;Hematology;Pulmonology

Test Principle: The test principle applied in this kit is Sandwich enzyme immunoassay. The microtiter plate provided in this kit has been pre-coated with an antibody specific to Immunoglobulin A (IgA) . Standards or samples are added to the appropriate microtiter plate wells then with a biotin-conjugated antibody specific to Immunoglobulin A (IgA) . 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 Immunoglobulin A (IgA), biotin-conjugated antibody and enzyme-conjugated Avidin will exhibit a change in color. 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 Immunoglobulin A (IgA) in the samples is then determined by comparing the OD of the samples to the standard curve.