Semi-preparative chromatography is the link between analytical HPLC and preparative LC. Even though the chromatographic systems used for semi-preparative LC do not reach the size of preparative LC systems, the objectives remain the same.
YMC has achieved considerable improvements in the manufacture of its classical silica base. This has given rise to an improved generation of stationary phases with superior physical attributes: YMC*Gel High Grade (HG)-series.
Ion exchange chromatography (IEX) is widely used in the analysis and purification of bio-molecules. Using reversible charge-charge interactions offers several advantages in comparison to other chromatographic methods, e.g. high capacity and fast throughput.
YMC preparative columns, packed with YMC*Gels, are available in a wide variety of column sizes to accommodate virtually any preparative separation. YMC use a high-pressure slurry technique to pack all preparative columns in optional 1,000 (69 bar) or 2,000 psi (138 bar) pressure rated hardware.