Metrohm 882 Compact IC plus Manual page 95

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Problem
Precision problems -
significant scatter-
ing of the measured
values
Unexpected change
to the retention
times in the chroma-
tograms
882 Compact IC plus – Anion
Cause
Injection valve – sample
loop.
Sample – rinsing volume
too low.
Injection valve – defective.
Separation column –
diminished separating effi-
ciency.
High pressure pump –
defective.
Remedy
Check installation of the sample loop (see
Chapter 3.12.1, page 34).
Increase rinsing time (see Chapter 5.9, page
69).
Request Metrohm Service.
Regenerate separation column (see Chap-
￭
ter 5.12.4, page 80).
Replace separation column (see "Connect-
￭
ing and rinsing the separation column",
page 48).
Request Metrohm Service.
6 Troubleshooting
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