or
Solid Phase Extraction Products; Thermo Scientific; HyperSep; SCX; SPE Column; 5g Bed Weight; 25mL Column Volume; 40-60um Particle Size; 60angstrom Pore Size; Trifunctional Benzene Sulfonic Acid, 0.32mEq/g, H+ counterion; Cation Exchange; 20/Pk
