or
Solid Phase Extraction Products; Thermo Scientific; HyperSep; Aminopropyl; SPE Column; 500mg Bed Weight; 3mL Column Volume; 40-60um Particle Size; 60angstrom Pore Size; Trifunctional Aminopropyl, 0.31 mEq/g; Normal Phase, Anion Exchange; 50/Pk
