CentriPure Gel Filtration Gravity columns

Hydrated Gel Filtration Columns for rapid purification, desalting and buffer exchange. Ultrapure gel and specially treated sinter frits ensure outstanding resolution and high selectivity. The gel matrix of CentriPure is Zetadex-25 (Z-25), a beaded composite material composed partially of polymerized dextran.  It exhibits high selectivity, high resolution and chemical stability.  Molecules purified with Zetadex-25 (Z-25) are separated according to size. Smaller molecules pass significantly slower through the column than larger molecules. Buffer and pH effects on resolution are minimal.

CentriPure P Gel Filtration Columns are specifically designed for rapid and efficient removal of small molecules from antibodies, enzymes and other proteins. Ultrapure gel and specially treated sinter frits ensure outstanding resolution and high selectivity. The size exclusion cut-off for Zetadex-25 (Z-25) is 5 kD for proteins. 

CentriPure N Gel Filtration Columns are designed for rapid and efficient removal of small molecules (salts, dyes, ammonia, haptens, biotin, etc.) from nucleic acids. The size exclusion cut-off for Zetadex-25 (Z-25) is 10 base pairs for oligonucleotides