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3.4 µL and 34 µL CIM Mini Disk Monolithic Columns

Commercially available CIM® disk monolithic columns are intended for very fast analyzes and laboratory purification. Their shape is a compromise to achieve acceptable resolution and binding capacity what make them suitable for wide range of laboratory applications. Separations of complex protein mixtures can be carried out within just a few seconds because of flow unaffected resolution and, on the other hand, purification can be effectuated with high productivity due to flow-unaffected dynamic binding capacity [1]. However, in many cases in the field of molecular biology, only a limited amount of sample is available. In such a case it is beneficial to work with small columns having high resolution or they can be used as affinity columns or bioreactors saving significant amount of valuable ligand. Having this goal in mind we developed CIM® disks with the volume of 1/10th and 1/100th of original volume. In comparison to conventional CIM® disks, they exhibit higher resolution and lower limit of detection, therefore smaller concentrations of target macromolecules can be detected. The separation ability and the protein capacity were tested on anion and cation exchange 3.4 mL and 34m L mini disk monolithic columns.