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TOF MS tuning can be performed in automatic or manual mode. In manual mode, users can select the optimized
parameter values or pause at the end of the tuning steps.
1. Open the MS Tune workspace.
2. Select
Positive TOF MS Tuning
or
Negative TOF MS Tuning
from the
Tuning Procedures
list.
3. Double-click the CDS power icon ( ) on the status panel to turn on the CDS flow.
4. Select the correct channel, 1 or 2, click
Start
, and then close the window.
5. Wait at least 1 minute for the CDS to equilibrate.
6. Make sure that the spray is stable.
7. Click
Next
.
8. Follow the on-screen instructions for each step.
9. Click
Next
.
10. (Optional) Save the report.
11. Click
Save Settings
if the results are satisfactory. If the results are not satisfactory, then do one of the
following:
• Repeat the steps.
• Discard the results by closing the
MS Tune
workspace.
• Restore the previous settings by selecting the appropriate backup file from the
Restore Instrument
Data
menu.
• Contact
.
Tune Q1 High
In MS/MS experiments, the Q1 region is used to select a precursor ion for fragmentation. Q1 High tuning optimizes
the peak width and calibrates the Q1 mass. Q1 High represents the width of the precursor ion selection window
at high resolution.
1. Open the MS Tune workspace.
2. Select
Positive Q1 High Tuning
or
Negative Q1 High Tuning
from the
Tuning Procedures
list.
Note:
If the positive Q1 High procedure has not been run for a period of time, then click
Copy
to use the
Positive Q1 Unit settings as a starting point.
3. Double-click the CDS power icon ( ) on the status panel to turn on the CDS flow.
4. Select the correct channel, 1 or 2, click
Start
, and then close the window.
5. Wait at least 1 minute for the CDS to equilibrate.
SCIEX X500 QTOF System
System User Guide
195 / 234
RUO-IDV-05-2334-E
Operating Instructions—Software