4
Creating a Method
Creating a MS Instrument Method
Thermo Scientific
TSQ 8000 Evo User Guide
59
Figure 56.
Accessing the Groups Pane
i.
The
Time (min)
column indicates the time that the MS begins to acquire data
after the GC starts for that group. It is typical to have enough of a time delay for
the start of the first group to allow the solvent to get through the column before
starting acquisition. The Time column in the group pane cannot be modified. If
necessary, modify the scan time in the Scans pane.
ii. The
Total Scan Time (sec)
column indicates the sum of all the scans in each
segment. See
. The total scan time also contains the stabilization time
that occurs between each scan. This method, beginning 2.5 minutes into the GC
run, gives you a complete set of scans every 0.342 seconds. At 5 minutes into the
GC run, the scanning completely changes. Now the scans will repeat every
0.108 seconds until the GC run is complete. As the total scan time is a calculated
value, it is not editable.
Summary of Contents for TSQ 8000
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