Absolute Mag™ Epoxy Magnetic Particles, Magnetite Matrixs, 500-600 nm (# WHM-Q100) are iron oxide particles coating a surface layer with epoxy groups, used in applications of DNA/RNA purification, cell isolation, immunoassay and clinical diagnosis, etc. Due to their ultra-high saturation magnetization , they are especially suitable for extracting genomic DNA from biological samples with high viscosity.