
• After using a buffer solution as the mobile phase, when replacing or purging the mobile phase with the buffer
solution remaining in the column, do not purge with a liquid that easily forms a precipitate in the buffer solution,
such as highly concentrated organic solvent. When normal pumping starts after purging, residue of the mobile
phase that was last purged, which can be found between the mixer and the autosampler, might flow in the
column and precipitate salt. To replace a mobile phase after using a buffer solution, rinse the column with a
liquid that does not form a precipitate in the buffer solution, such as HPLC-grade water, and then purge or
pump the residual mobile phase.
1. If a column is connected, remove it, and then install the supplied PEEK tubing, or another replacement tube,
and the coupling.
Figure 4-5 Preparing for AutoPurge
Description
Item
Supplied PEEK tubing
A
Coupling
B
2. Press
Purge
on the Main Analysis screen.
Hardware User Guide
ExionLC
™
100 System
RUO-IDV-05-1839-C
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Operating Instructions