4.11
Cleaning/Replacing the Suction Filter
Necessary Parts
Part Name Part Type Part No. Quantity
SUS Filter Element, w/PTFE
Fitting
Consumable part 228-45707-91 1
Use the SUCTION FILTER with tube and fittings for pump inlet (Part No. 228-45708-91 ) or
SUCTION FILTER with tube and fittings for the low pressure gradient kit or the degassing
unit (Part No. 228-61905-49 ) as necessary.
Contamination of suction filters can lead to contamination of mobile phase
solvents and bottles, causing background rise and ghost peaks. Even if you are
wearing gloves, do not touch the metal parts of the suction filter as much as
possible. Hold the non-metal part of the filter element.
After using the buffer solution as the mobile phase, do NOT replace with an
organic solvent such as 2-propanol without first replacing with water.
When using a buffer solution, replace it with distilled water or purified water,
and after pumping at least 20 mL into the instrument, replace it with new
2-propanol. If the buffer solution is directly replaced with 2-propanol, crystals
will be precipitated, which can cause damage to the plunger seal or cause
problems with the check valve.
System Guide "Precautions When Replacing the Mobile Phase"
1
Pull the suction filter (A) from the
suction tubing (B).
2
Place the suction filter into a clean
container with 2-propanol, and clean it
for 5 minutes using an ultrasonic bath.
LC-40D X3 CL LC-40D XR CL
117
4.11 Cleaning/Replacing the Suction Filter
4