YMC-Pack Pro C18RS

YMC-Pack Pro C18 RS 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.

The relatively high carbon load of 22% for YMC-Pack Pro C18 RS and its smaller pore diameter amplifies the selectivity’s ability to discriminate between closely related compounds such as positional or steric isomers. YMC-Pack Pro C18 RS recognises even slight steric differences, even if the analytes differ only in their three-dimensional structure and not in their hydrophobicity or polarity. A more conventional carbon load (~15%) C18 chemistry is not able to use this property for separation.