B
Notes
Thermo Electron Corporation
LTQ XL Getting Started
159
Notes
1. Two-point mass calibration is available for all high mass range modes
accessed through the Estimate Other Calibration Modes Using Current
Full Scan group box (in the Diagnostics dialog box,
2. Use the
Execute
button in the Estimate Other Calibration Modes Using
Current Full Scan box to execute estimation for all other calibrations
from the normal mass range-normal scan rate mass calibration. The
other modes for which the calibrations get estimated include Zoom
Scan, Turbo Scan, Enhanced Scan, Isolation Waveform, and High Mass
Isolation Waveform calibrations.
This button changes when the High Mass Scan mode is selected. In this
case, clicking on the
Execute
button causes the High Mass Isolation to
be estimated from the Current Normal Mass Range Isolation calibration
(assuming that it has been calibrated). This feature has been added to
extrapolate the High Mass Isolation calibration for Initial calibration. As
noted in item #1, a two point mass calibration is available for all other
scan modes . This makes it possible to get sufficient convergence of
various mass values to allow automatic calibration.
3. In order to calibrate with High Mass Range Zoom Scan, it may be
necessary to reduce the Zoom Scan target from 3000 u to 1000u.