Mouse FGF-21 ELISA kit, Fluorescent is a single-wash 90-min Simplestep used to quantify Mouse FGF-21 with a sensitivity of 1 pg/ml. The assay uses a simple mix-wash-read protocol with just one incubation and one wash step. Fluorescent Sandwich ELISA - 530/570/590 nm readout: works on any standard plate reader.