116 Agilent 1200 Preparative Pump User Manual
7 Maintenance
Simple Repairs
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 (65%) for one hour.
2 Thoroughly flush the filter with bidistilled water (remove all nitric acid,
some columns can be damaged by nitric acid).
3 Replace the filter.
When If solvent filter is blocked
Parts required # Description
Concentrated nitric acid (65%)
Bidistilled water
1Beaker
Preparations Remove the solvent inlet tube from the inlet valve of the pump and let the tube hang down
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