Polypropylene Columns (5 ml)

Empty 5 ml polypropylene columns from QIAGEN serve as versatile disposable housings for gravity-flow and low-pressure chromatography workflows in molecular biology and biochemistry laboratories. Manufactured from chemically resistant polypropylene, each column accepts standard chromatography resins, desalting media, or ion-exchange matrices and is compatible with common buffer systems used in protein and nucleic acid purification.

The columns feature a tapered Luer outlet and a wide inlet that simplifies resin slurry loading, allowing researchers to pack approximately 1 to 4 ml of bead bed depending on packing technique. Each unit snaps into a standard collection tube or rack for benchtop processing, and the inert polypropylene construction tolerates a working range of routine laboratory reagents, including chaotropes, detergents, and moderate salt concentrations. Because the resin is user-supplied, the columns accommodate custom protocols such as buffer exchange, peptide desalting, affinity capture with immobilized ligands, and clean-up of enzymatic reactions.

Supplied as individual columns in a single-use format, this consumable supports small-batch screening and method development where flexibility in resin selection is required. Typical applications include research use only workflows such as spun-column purification, manual mini-prep style clean-ups, and teaching demonstrations of liquid chromatography principles. The columns are recommended for room temperature storage in a dry environment away from direct sunlight to preserve the integrity of the polypropylene over extended bench life.