Description: Human IL-21 ELISA Kit contains all components required for the quantitative measurement of natural and/or recombinant Human IL-21 in a sandwich ELISA format.  

Components: Pre-coated 96-well Microplate Biotin conjugated detection antibody Standard Protein (Recombinant cytokine for generating standard curve) Color Development Enzyme (Streptavidin-HRP conjugate) Pre-stained Color Development Reagent (pink-ONE TMB Solution) Assay Diluent Stop Solution Wash Buffer (20X) Plate Sealers  

Sample Type: Serum, Plasma, Supernatants from cell cultures