Human IL-2/Interleukin-2 PicoKine Quick ELISA Kit (90 minutes, 96 Tests). Quantitate Human IL2 in cell culture supernatants, serum and plasma ( heparin, EDTA, citrate). Sensitivity: 1pg/ml. The brand Picokine indicates this is a premium quality ELISA kit. Each Picokine kit delivers precise quantification, high sensitivity, and excellent reproducibility. Only our most reliable and effective kits qualify as Picokine, guaranteeing top-tier results for your assays.