Human IFNA2 ELISA Kit PicoKine (96 Tests). Quantitate Human IFNA2 in cell culture supernatants and serum. Sensitivity: 1 pg/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.