Anti-HBs
Anti-HBs ELISA is a solid-phase enzyme immunoassay (ELISA= enzyme-linked immuno-sorbent assay ) based on the "sandwich principle". The solid phase of the microtiter plate is made of polystyrene wells coated with HBsAg (subtype Ad and Ay), and the liquid phase of peroxidase conjugated HBsAg (subtype Ad and Ay). When a serum or plasma specimen containing Anti-HBs is added to the HBsAg-coated wells together with the peroxidase conjugated HBsAg and incubated, (antigen)-(Anti-HBs)-(antigen • peroxidase) complexes will form on the wells. After washing the microtiter plate to remove unbound material, a solution of TMB substrate is added to the wells and incubated. A color develops in proportion to the amount of Anti-HBs bound to HBsAg. The peroxidase-TMB reaction is stopped by addition of sulfuric acid. The optical density of developed color is read with a suitable photometer at 450 nm with a selected reference wavelength within 620 to 690 nm.
Product Specifications:
- Product code: GDBG4SBE3
- Sample: 50 µl
- Sensitivity: 3.6 mlU/ ml
- Calibration: WHO Standard W1042