ProElut™ PSA

ProElut™ PSA sorbent contains two different amino groups, one primary and one secondary. It gives comparatively higher pK_a and ionic capacity relative to ProElut™ NH₂. The PSA sorbent is an excellent choice for extracting polar compounds from non-polar solvents. The compounds that are retained too strongly on a NH₂ sorbent can be effectively eluted on a PSA sorbent. In addition, the PSA functional group is a very effective bidentate ligand in chelation applications.

Base material	Spherical silica, Particle Size: 50 μm, Pore Size: 60 Å, Specific Surface Area: 500 m2/g
Functional group
Endcapping	No
Carbon loading	8.5%
Retention mechanism	Normal phase or weak anion exchange
Application	Extract polar compounds from non-polar matrix Remove polar hydrocarbons, organic acids, and phenols in extracts Separate compounds with very similar structures (isomers)