TK-Col Hard Phenyl (HS) pre-packed columns are ready-to-use hydrophobic chromatographic columns with TH-Phenyl (HS) media packed in TK-EC 1ml ,TK-EC 4.9 ml ,TK-EC 5ml ,TK-EC 20ml chromatographic columns, eliminating the trouble of filling the columns on your own and the risk of poor column efficiency. These pre-packed columns are widely used for laboratory process development, small amount sample preparation, and are suitable for the separation and purification of biomolecules in the fields of peptides, recombinant proteins, and antibodies.