Spe Cartridge Sax Nec Siliaprep 60a 6ml , Box Of 50

Details:

Siliaprep* spe cartridge scx/sax nec 200 mg^ siliaprep* spe cartridge, scx/sax nec, particle size: 40-63 um / 230-400 mesh, pore size: 60 armstrong, bed weight: 200 mg, column volume: 6 ml, is a tri-mode extraction and fractionation of acidic, neutral and basic compounds from aqueous solutions