Metrohm 792 Basic IC - Manual (Page 166)

5.3 Faults and malfunctions
792 Basic IC
157
Malfunction Cause Rectification
Chromatograms
with poor resolu-
tion, change in the
retention times x Deterioration in
separation efficiency of
the IC column
x Regenerate column (see
section 5.1.1) or replace
column
Extreme peak
broadening,
splitting (double
peaks) x Dead volume at the
column ends
x Fill column with glass
beads (‡ d 100 Pm) or
replace column
No feed of
regeneration or
rinsing solution
for suppressor x Contact pressure too
low
x Leak in system
x Defective pump tubing
x Contamination of the
filter in the 6.2821.100
Filter unit PEEK
x Counterpressure at
suppressor module too
high
x Adjust contact pressure
(see section 2.9.2)
x Check connections and
make leakproof
x Replace pump tubing (see
section 5.2.9)
x Replace the 6.2821.110
Filter (see section 2.3.5)
x Clean or replace suppres-
sor (see section
5.2.6}5.2.8)