This category includes column for anion and cation exchange as well as mixed-mode analyses. 

BioBasic AX columns are recommended for multi-dimensional proteomic analysis

BioBasic AX columns give superior reproducibility, stability and efficiency.

BioBasic SCX columns are recommended for multi-dimensional proteomic analysis.

BioBasic SCX columns for separations of proteins, peptides, biomolecules

Hypersil Duet columns are an ideal choice for unknown compounds and metabolism studies