SPE column, CHROMABOND SiOH, 45 µm, 3 mL/200 mg

Description

Unmodified, weakly acidic silica gel, very polar. Adsorbs moisture from the air, so it should be well sealed and, if necessary, dried before use. Due to its high affinity to polar compounds, it should not be conditioned with polar (e.g. methanol) or aqueous solvents.