The AXIFLOW HPLC columns are offered with the C18, C8 and silica chemistries and a wide range of particle sizes, dimensions, pore sizes, pH stability to cater to a great number of analytes.
The C18 or RP18 or ODS (USP L1) columns are used for retention and selectivity of a number of non-polar compounds.
The C8 or RP8 or octylsilane (USP L7) columns are used for retention and selectivity of a number of non-polar compounds (but relatively polar to the compounds normally used in C18 columns) to expedite the separation.
The silica (USP L3) columns are used for retention and selectivity of a number of polar compounds.