Human Caspase 8/CASP8 ELISA Kit PicoKine® (96 Tests) . Quantitate Human CASP8 in cell culture supernatantsand serum. Sensitivity: 10pg/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.