http://www.cd-bioparticles.com/p/Carboxyl-Magnetic-Particles_20_193_211_356.htmlAbsolute Mag™ Carboxyl Magnetic Particles, Magnetite Matrixs, 200-300 nm (# WHM-Q092) are iron oxide particles coating a surface layer with carboxyl 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.DNA/RNA Purification, Cell Isolation, Immunoassay, Clinical Diagnosis