http://www.cd-bioparticles.com/p/NHS-activated-Magnetic-Particles_20_193_218_419.htmlAbsolute Mag NHS-activated Magnetic Particles, 0.5 μm (# WHM-X024) are uniform, superparamagnetic particles with a high density of NHS (N-hydroxylsuccinimide) functional groups on the surface. The particles are used to specifically conjugate primary amine-containing targeted protein or ligands in a simple mix-and-go format for use in custom affinity purification experiments with significant low non-specific binding.Antibody/Protein Purification