Absolute Mag™ Amine Magnetic Particles, PVA, 0.5-1 μm (# WHM-C305) consist of a matrix of polyvinyl alcohol, which is subsequently aminated using an eight-atom spacer. The beads are suitable for the easy binding of proteins or nucleic acids with known coupling methods (e.g. glutaraldehyde-activation). Their high magnetite content permits a rapid separation process. The beads have a polydisperse size distribution.