20 Understanding Your Agilent ChemStation
1 Agilent ChemStation Features
About the ChemStation Software
to the quality of each analysis. The exact nature of the parameters recorded
depends both on the technique and the capabilities of the configured
instrument.
One or more display windows may be used to monitor the data being acquired
by the instrument in real time. The data are displayed in real measurement
units such as mAU, Volts, degrees or bar. The windows may each show multiple
overlaid chromatographic/electropherographic signals or instrument
parameters, such as pressure. The display default settings may be adjusted
and are remembered by the system so users can set their own preferred
settings as the instrument default. The window has zoom capability and the
cursor may be used to display a specific signal’s response at any point in time.
During an analysis, the complete functionality of the ChemStation can be used
through the offline copy. While acquisition is running, the Data Analysis part
of the online session of an instrument is not accessible, and data review has to
be performed in the offline copy.
A snapshot function is available for users who wish to start processing data
before the analysis is completed. The snapshot has to be taken in the offline
copy of the instrument sessions and is immediately present for review.
The layout of the signal and status information windows, including the
components of the schematic instrument interface diagram is saved
automatically.
For further information on Data Acquisition, see “Data Acquisition” on
page 59 and the online help system.
Data Analysis — Display
The Data Analysis view extends the standard tool bar with task-grouped data
analysis functions including integration, calibration, reporting, annotation,
and signal comparison toolsets. The following key graphical operations are
possible:
• single or multisignal displays selectable when loading the
chromatogram/electropherogram,
• overlays of chromatogram/electropherogram from different samples,
• subtraction of one chromatogram/electropherogram from another,
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