Apr 27, 2011 09:21 EDT Olink Bioscience Proseek™ is a user friendly open assay development reagent kit for the detection and quantification of proteins in serum or plasma samples. It offers the same level of performance as ELISA, but uses extremely low sample volumes; only1 µl is required for each reaction thus enabling the scientist to study precious bio-banked materials and plasma from small laboratory animals.