TLC sorbents, reagents

hard granular magnesia silica gel: MgO 15.5±0.5%, SiO ₂ 84.0 ±0.5%,
Na ₂SO ₄œ1.0%; 60/100 mesh
typical applications: sample preparation (SPE); clean-up of pesticide residues, separation of chlorinated pesticides, extraction of steroids, sex hormones, antibiotics, lipids etc....