The Bond Elut cellulose column is filled with high-purity particulate cellulose powder, and two polypropylene sieve plates with a pore size of 20 μ m are used on both sides. The metal content of this cellulose phase is extremely low and very stable over a wide pH range. The large specific surface area and unique polymer structure of the adsorbent give it a high sample capacity. Cellulose media contains a large number of hydroxyl groups; Due to its high polarity, it can adsorb many polar substances from both aqueous and organic phases.