Monkey TNF alpha ELISA Kit is a single-wash 90-min Simplestep used to quantify Monkey TNF alpha with a sensitivity of 4,93 pg/ml. The assay uses a simple mix-wash-read protocol with just one incubation and one wash step. - Colorimetric Sandwich ELISA - 450 nm readout : works on any standard plate reader - Validated on a number of sample types including cerebrospinal fluid (CSF).