http://www.cd-bioparticles.com/p/Glutathione-Magnetic-Particles_20_194_231_505.htmlAbsolute Mag™ Glutathione Magnetic Particles (# WHM-L046) are high-performance, superparamagnetic particles, providing a fast and convenient method for manual or automated purification of glutathione S-transferase (GST) fusion proteins from a bacteria, yeast or mammalian crude cell lysate. Glutathione is immobilized through its central carbon, preserving the essential structure necessary for efficient GST binding. Antibody/Protein Purification