Cleaning Method: Silica-based Reversed Phase Chromatography Columns (ODS Columns)

Please read the column cleaning method for your column.

Silica C18M series

For an efficient cleaning, reverse the flow direction.

Flow rate during the cleaningScroll
Product name Flow rate Product name Flow rate
Silica C18M 4D ≤ 0.5 mL/min Silica C18M 4E ≤ 0.5 mL/min

 

Method 1: Apply after using the column under highly aqueous condition for an extended period of time.

Introduce water/acetonitrile = 20/80. Recommended solvent volume to introduce is 5 to 10 times of the column volume.

 

Method 2: Apply after injecting protein containing samples.

Introduce water/acetonitrile = 50/50 - 30/70 with 0.1 % TFA. Recommended solvent volume to introduce is 5 to 10 times of the column volume.

(Attention)
Some proteins may precipitate in high-concentration organic solvents.
 
Keeping the washing solution in the column for a long time will lead to column deterioration. Please replace the washing solution with the eluent immediately after cleaning.