Biomart offers a single-use chromatography tools, which simplifies the use of the resins and makes the purification process a simple and rapid one. Empty mini Columns serve as a tool for purification using small quantities of resin (100-250µl). It is a single-use format for centrifuge purifications. The packages contain 25 or 100 Plastic Mini Columns supplied with their top caps. The Plastic Mini Columns are polypropylene and contain a polyethylene frit with a nominal pore size of 20µm.