Hamilton HPLC Guard Cartridge PRP-3, 100Å, 12-20 μm, 4.6 x 20 mm, 2 pc/PAK

PRP-3 particles come with a larger (300 Å) pore size for protein separation. No silanol groups on the resin means no irreversible protein adsorption, giving > 90% analyte recovery. This stable material also allows the use of concentrated acids, chaotropes, and even detergents to minimize problems with protein solubility.