Rat FLT1 ELISA Kit (VEGF-R1) is a single-wash 90-min Simplestep used to quantify Rat FLT1 (VEGF-R1) with a sensitivity of 0,11 ng/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.