Agilent 1290 Infinity LC System Manual and Quick Reference
133
Appendix
6
Setting Up a Method using Edit Entire Method
Data Analysis
Signal Details
The
Signal Details
screen can also be directly accessed in
Method and Run Control
view: right-click on the graphical user interface on the
Calibration
icon, and
then select
Signal Details
in the context menu. In the Data Analysis view, it can
be accessed through the menu
Calibration > Signal Details
.
The
Signal Details
screen is the next step in
Edit Entire Method
and it tells Data
Analysis which of the acquired signals to process. The drop-down box lists the
available signals, including the analytical signals defined in the detector
settings, and recorded parameters such as temperature, flow, composition,
pressure and diagnostic traces. Select a signal and click
Add to Method
to
transfer it to the
Signal Details
table shown in the lower part of the screen. You
can select any or all of the acquired detector signals for processing. If no
signals are selected, the table is empty; in this situation, ChemStation will
default to processing all of the acquired detector signals.
Sometimes the user might edit an existing method to create a new method and
is faced with a
Parameter Mismatch
error when attempting to run the method.
What has happened is that in the old method the
Signal Details
contained a
specified signal, for example 250 nm with 8 nm bandwidth, and this is
changed in the new method to 254 nm/12 nm for example. The
Signal Details
table still contains the original details and is being told to process a signal
which is no longer acquired. Highlighting the old signal in the table and using
the
Delete Row
button will correct the problem.
If a system uses multiple detectors such as the diode-array detector and a
mass spectrometer, the
Signal Description
lines allow delay times for the
downstream detector to be entered so that the software can align the peaks
from the different detectors.
