Eicom ENO-30, Руководство пользователя

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37 | P a g e
the outlet side of the precolumn. Failure to pack correctly will cause the peaks shapes to
appear strange, except when the pre-column has been place ahead of the injector.
10)
If the peak shape of the standard sample doesn’t improve with the newly re-packed column,
but is still good when only the separation column is in place, the pre-column needs to be
repacked again. In most cases, problems with packing are the result of voids in the packing
material. Please fill the precolumn slowly. If the correct type of packing material isn’t used,
the peak shape may appear asymmetric.
10-3. Filter Exchange
When the pressure is high, the upstream filter (PF-04) is clogged and should be exchanged. To
remove the filter from the house, you will need to use the filter exchange tool (FP-05, see below).
It has a needle that pushes out the old filter as you screw in the tool.