User manual

1260 Nanoflow Pump User Manual 137
Maintenance
9
Checking and Cleaning the Solvent Inlet Filters
Cleaning the Solvent Filters
1 Remove the blocked solvent filter from the bottle-head assembly and place
it in a beaker with concentrated nitric acid (35%) for one hour.
2 Thoroughly flush the filter with LC grade water (remove all nitric acid,
some columns can be damaged by concentrated nitric acid).
3 Reinstall the filter.