Components: ELISA 5X Sample Diluent Buffer (Item D2); ELISA 5X Assay/Sample Diluent Buffer E (Item E2); HRP-Streptavidin (Item G); 2X Cell Lysis Buffer (Item J); Rat IL-1 β Antibody-coated ELISA Plate (Item A); Biotinylated Rat IL-1 β Detection Antibody (Item F); Lyophilized Rat IL-1 β Protein Standard (Item C); ELISA Stop Solution (Item I); ELISA Colorimetric TMB Reagent (HRP Substrate, Item H); 20X Wash Buffer (Item B)