B
High Mass Range Calibration Procedure
Thermo Electron Corporation
LTQ XL Getting Started
157
•
If you want to use a previously saved mass list Name in the
Calibration Mass List group box go to
•
If you want to use a new mass list Name in the Calibration Mass List
group box go to
7. To use a previously saved calibration mass list Name in the Calibration
Mass List group box,
a. Select the Name list from the name of a previously saved calibration
mass list. The calibration masses saved in the selected list appear in
the table below the Name list box (in the Monoisotropic m/z and
the Average m/z columns). The example in
shows the
calibration masses saved for the calibration mass list: PPG 2700
(factory).
8. To assign a new calibration mass list name,
a. You can use the factory default PPG2700 name that is in the Name
list box or you may assign a new name for this mass list.
b. To assign a new name click on the
Save As
button. The Unique
Mass List Name dialog box appears.
c. Type the new name in the Unique Mass List Name dialog box and
click
OK
to accept the name. The dialog box closes and the new
name appears in the calibration mass list Name list box.
d. Do not change the masses in the Calibration Mass List table.
9. In the ‘What to cal/check’ area, click the Mass for Normal, Mass for
Turbo, Mass for Zoom, and the Isolation Waveforms check boxes as
shown in
10. Specify the instrument state when the calibration is completed. Use the
Set Instrument to Standby When Finished check box at the bottom left
of the Calibrate dialog box.
•
If you want the LTQ XL to switch to Standby mode after the
calibration, click the check box so that a check mark is present in the
box.
•
If you want the LTQ XL to remain in the On mode after the
calibration, clear the check box.
11. Start the calibration procedure.