Propylsulfonic acid modified silica cation exchanger for SPE
Features
- Base material silica, pore size 60 Å, particle size 45 µm, specific surface 500 m2/g, pH stability 2–8
- propylsulfonic acid modified silica
- very strong cation exchanger (capacity ~ 0.7 meq/g)
- contrary to the SA phase no π-π interactions
Recommended application: weak cations