ELISA Wash Buffer is a Tris-based wash buffer for use in cytokine and other sandwich ELISA procedures. The 30X concentrated stock solution is easily diluted 1:30 (vol:vol) in ultrapure water to yield sufficient wash buffer for a typical 96-well microplate ELISA protocol. Supplement an existing ELISA Kit or use as a convenient general purpose wash buffer for customized ELISA methods.