Preparative Columns: SILICA 300 Å* are packed with ultra-pure, large-pore silica optimized for high-performance preparative normal-phase chromatography. With a 300 Å pore size, these columns are ideal for purifying large biomolecules such as proteins, peptides, and complex natural products. They provide excellent flow dynamics, high sample loading capacity, and sharp resolution, ensuring reliable and reproducible results for pharmaceutical, biochemical, and industrial purification workflows.