Doc. 031851-05 12/04 D-1
D•FAQ
D.1 How do I hook up an AS40 Automated Sampler?
For instructions on how to connect the ICS-90 to an AS40, see Section B.17 of
this manual. Also see the AS40 Automated Sampler Operator’s Manual
(Document No. 034970).
D.2 How do I print?
Click the Print toolbar button in Chromeleon (see Section 2.3.2).
D.3 How often should I perform calibrations?
Recalibrate every six months or after changing a major component (separator
column, DS5, suppressor, etc.).
D.4 Why are the retention times moving?
Retention times can shift if the pump flow is erratic or if the column or eluent is
contaminated. See Section 4.6
for pump flow rate troubleshooting. If a
contaminated column is suspected, clean the column as instructed in the column
manual. The column manual is included on the Dionex Reference Library CD-
ROM (P/N 055405), located in the ICS-90 Ship Kit.
D.5 How do I adjust retention times?
Retention times are calculated during calibration. The Use Recently Detected
Retention Time parameter in the Chromeleon QNT Editor (General tab) can be
used to compensate for some types of retention time drifts; for example,
evaporation of volatile components in pre-mixed solvents or an aging column.
Refer to the Chromeleon Help or user’s guide for details.
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