70 Agilent 1260 Infinity DAD and MWD User Manual
4
Using the Detector
Setting up an Analysis
5 Purge the pump. For more information see “Priming and Purging the
System” on page 63.
6 Allow the detector to warm up at least 60 minutes to provide a stable
baseline (see example in Figure 17 on page 70 and Table 11 on page 70).
Figure 17 Stabilization of Baseline (both lamps turned on at the same time)
For reproducible chromatography, the detector and lamp should be on for at least one hour.
Otherwise the detector baseline may still drift (depending on the environment). See also
section Wander/Drift Problems Due to Temperature Changes in the Service Manual..
Tabl e 1 1 Baseline drift after lamp turn on (example from Figure above)
Time [minutes] Drift [mAU/hr]
17 - 20 2.6
27 - 30 0.8
37 - 40 0.4
47 - 50 0.2
57 - 60 < 0.2
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