Preparative Columns: SILICA 100 Å* are packed with high-purity, unbonded silica particles designed for normal-phase preparative chromatography. With a 100 Å pore size and high surface area, these columns deliver excellent separation efficiency and sample loading capacity, making them ideal for isolating non-polar and moderately polar compounds at scale. They ensure reproducible performance, sharp peak resolution, and are widely used in pharmaceutical, natural product, and fine chemical purification processes.