CBA is a mid-polarity sorbent and weak cation exchanger (pKa 4,8). It can be used with a wider range of counter-ions than lower pKa sorbents like SCX and will demonstrate easier elution of quaternary amine functionalised analytes.

• Cation exchange with no need for extreme basic conditions
• Wider selectivity range provides more eluent options
• Polar or non-polar depending on matrix or solvent