Semi-Prep Preparative Columns are columns that are used to purify and isolate compounds from samples that contain a mixture of compounds. These columns are made from high-quality silica gel, with a variety of bonded phase types available, and are designed for the efficient separation of up to a few grams of sample. The columns are packed with a high column capacity, providing superior performance and higher resolution. Semi-Prep Preparative Columns are ideal for preparative chromatography and purification of compounds in a variety of industries, including pharmaceutical, biotechnology, food, and environmental analysis.