Optimizing Autosampler Performance - Agilent Technologies G1323B User Manual

5 Using the Autosampler
Entering Settings

Optimizing Autosampler Performance

There are two optimization modes available on the autosampler (called
prefetch and overlap). Both options allow to shorten the analysis time for
operations that require a high sample throughput.
The optimization modes can be chosen from the Analysis screen:
1 Press the Settings button [F1].
2 Choose the Autosampler from the list.
3 Select the More... button [F1].
4 Choose Optimization from the list.
5 In the appearing window the optimization mode can be chosen from the list
If you choose the Prefetch Sample Vial option, the next vial (for multiple
injections the same vial) will be moved close to the injection port after the
specified elapsed runtime. The injection cycle will not be started. This
procedure reduces the total injection time without interfering with the
current run.
By choosing the Overlap Injection Cycle option the next vial will be placed in
the injection port after the selected elapsed runtime. The following
restrictions apply when using the Overlap option:
• The elapsed runtime entry before the sample is processed must not
• Overlapping works only for a given vial range (e.g. within one sequence
• The first run for a new vial range is done without overlap.
• Injector programs using valve switching commands must not be executed
The screen also allows you to enable/disable the option 'always keep transport
arm next to last used vial'.
78
box as well as a delay time.
interfere with the current running analysis.
line).
when overlapping is selected. They will fail with an error message. Since all
injector programs created with the Agilent ChemStation require such
commands in order to function correctly, none of them will work in the
overlap mode.
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