Resolv-Rf™ Silica Hard Layer (HL) TLC Plates are made with standard grade Silica 60, which has a surface area of 500 m2/g, mean pore size of 60A, specific pore volume of 0.75 ml/g, and particle size of 5-17um. The TLC plates contain UV254 fluorescent indicator. This analytical hard layer is bound to a glass support. It has a thickness of 250um and dimensions of 20x20cm. There are 25 plates per pack. Resolv-Rf™ TLC Plates are suitable for all common separations. The layer has a hardness that is abrasion resistant and can be easily labeled with a lead pencil for clear identification. The dense coating yields narrow bands for a high separation efficiency. Applications include: drug synthesis compounds, identity of drugs, food and environmental samples, quality control testing of pharmaceuticals, etc. Made in the U.S.A.