YMC-Pack ODS-AL

YMC-Pack ODS-AL 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 ODS-AL uses not only hydrophobic interaction but also secondary interactions with reactive residual silanol groups on the silica surface to affect separation. This results in a different selectivity from conventional ODS columns. YMC-Pack ODS-AL is the ideal choice for mixed mode separations. Due to the residual silanol groups YMC-Pack ODS-AL shows relatively greater retention of pyridines for example.