http://www.cd-bioparticles.com/p/Amine-Magnetic-Particles_20_193_209_229.htmlAbsolute Mag™ Amine Magnetic Particles, PEG Spacer Arm, 3.0-3.9 μm (# WHM-S059) are prepared by coating a layer of magnetite and polystyrene containing a PEG-based spacer arm that is terminated with amine groups for coupling carboxyl-containing molecules, onto monodispersed polystyrene core beads. . They are used for cell separation, affinity purification, DNA probe assays, magnetic bead EIA, etc.Proteins/Ligands Immobilization, Cell Isolation, Antibody/Protein Purification, DNA Probe Assays, Immunoassay