Rat Beta-2-Microglobulin ELISA kit is a single-wash 90-min Simplestep used to quantify Rat Beta-2-Microglobulin with a sensitivity of 268 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.