Table of Contents
Advertisement
6
Appendix
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.
Agilent 1290 Infinity LC System Manual and Quick Reference
133
Advertisement
Chapters
Table of Contents
