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 C18M 4D C18M 4E
Flow rate ≤ 0.5 mL/min ≤ 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.

Operation Manual / Certificate of Analysis

Operation Manuals and Certificate of Analysis / Inspection Certificate for the following products can be downloaded here.

Product Name Index