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Effect of Different Parameters on Binding Capacity of CIM® Monolithic Columns

CIM® (Convective Interaction Media) supports represent the fourth generation of chromatographic supports monoliths. These glycidyl methacrylate based monolithic columns are commercially available under the name CIM®. In contrast to conventional porous particles the morphology of the CIM® supports is characterised by a single monolithic unit that contains pores, opened on both sides. These pores are highly interconnected forming a flow-through network. Thus the whole mobile phase is forced to run through these open pores, therefore, the mass transfer between stationary and mobile phase is based on convection rather than on diffusion. This transport mechanism enables very fast separations and purifications of components as well as flow-unaffected resolution and dynamic binding capacity. The latter is especially important for the purification of molecules on preparative level where the productivity is essential. One of the key features of monolithic units is their pore size distribution that should enable low backpressure at high throughputs together with high specific surface area, needed for high binding capacity. In this work the effect of different parameters on binding capacity of CIM® monolithic columns is presented.

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