Polysciences is the leading supplier of dyed microspheres to the latex agglutination and membrane-enhanced immunoassay marketplace. Diagnostic manufacturers rely on our precisely controlled particle synthesis to ensure reproducibility in both assay design and performance.
Our dyed Polybeads® are packaged in an economical 2.5% aqueous suspension and are available in a variety of sizes and colors.
Nominal Reference Values:

0.50µm particles packaged as 2.5% aqueous suspension.
5.68 x 1012 particles/ml
Coefficient of Variation (CV) = 5%