Polysciences offers europium chelate microspheres in diameters of 0.1µm, 0.2µm and 0.3µm to address the needs of individual assays, including immunochromatographic and microwell-based formats. Our europium products offer extremely bright fluorescence and exceptional stability, in addition to well-functionalized carboxylated surfaces for the covalent attachment of ligand.
Nominal Reference Values:
Supplied as 1% aqueous suspension.0.3 um - 6.68 e+11 particles /mLExcitation max - 365nmEmission max - 610nm