YMC-Pack NH2

YMC-Pack NH2 Guard Columns

YMC recommends that you always use a guard column with the same packing material and of the recommended inner diameter for your column. A YMC guard column is normally composed of a cartridge holder and a guard cartridge. The holder can be used repeatedly. Guard cartridges should be changed frequently in order to maximise their protection of the main column.

YMC-Pack Amino is frequently used for the analysis of mono-, oligo- and polysaccharides as the amine functionality provides retention and allows the separation of polar compounds under aggressive normal phase elution conditions (acetonitrile/water eluents). They can also be used in place of silica for conventional normal phase chromatography using non-polar solvents. YMC-Pack Amino can also be used for the separation of isomers of tocopherols and other organic soluble compounds such as paraffins, olefins and aromatics under conventional normal phase conditions. In aqueous, low pH buffers the amino phase becomes a weak anion exchanger capable of separating negatively charged molecules.