Thermo Scientific Dionex Easion, Руководство оператора

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Dionex Easion Operator’s Manual
56
Doc. 155028-01 08/20
4.9 Nonreproducible Peak Height or Retention Time
•
Column overloading
Dilute the sample (see Section 3.10.3 ).
•
Liquid leaks
Locate and eliminate the leaks (see Section 4.2 ).
•
Incomplete or imprecise filling of the sample loop
1. Fill the sample loop until excess sample exits the waste line.
2. Inspect the 1 cc syringe (P/N 016388) and replace if damaged.
•
Pump not primed properly
Prime the pump (see Section 3.6 ).
4.10 Abnormal Retention Time or Selectivity
•
Contaminated or incorrect eluent
Remake the eluent, using concentrated eluent and ASTM Type I
(18.2 megohm-cm) filtered and deionized water (see
Section 3.4 ).
•
Contaminated or degraded sample
Take appropriate precautions when preparing and storing samples to prevent
contamination and degradation (see
Section 3.10 ).
•
Contaminated column
1. Clean the column as instructed in the column manual.
2. If cleaning is unsuccessful, replace the column.
4.11 No Detector Response
•
Cell not properly installed
Check that the cell is plugged into the component mounting panel and the cell
housing is screwed down so that the bottom of the housing is flush against the
sheet metal panel (see
Figure 2-2 and Figure 2-9 ).