SIELC HPLC-Guard Column PEI, 100 Å, 5 μm, 4.6 x 10 mm, 2 pc/PAK

SIELC has engineered a PEI-specific column that combines both ion-exclusion and size-exclusion mechanisms. This allows for the effective separation of PEI polymers from most other high and low-molecular-weight compounds, as well as from excess Cu (II) ions.