30 kDa Polystyrene, 0.5 g

0.5 g vial of 30 kDa Polystyrene powder; for use as an organic standard.

Molar mass validation and normalization for DAWN, miniDAWN, microDAWN (aqueous mobile phase); molar mass and size validation for DynaPro NanoStar, DynaPro Plate Reader and Mobius.