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Agilent 7500 ICP-MS ChemStation Operator’s Manual
Viewing a Time Chart
3 To select a correction, enter a value in points in the Correction box.
To compensate for a sloping baseline, you can adjust the integration window by
selecting different points. The points relate to the number of time slices either side
of the window that the baseline is measured. The mean point between the sides of
the original window and the outer window is fixed as the baseline correction. For
more information, please refer to Online Help.
NOTE The integration window is set for the selected mass, though you can set the window
for all masses. To do so, ensure that a Total Ion Chart shows in the display window
and complete Steps 1 through 4. You can also save the selected integration window
by saving the method. ChemStation will apply the selected integration window to all
samples in the method.
4 To set the integration parameters and the correction, click OK.
ChemStation returns to the time chart. Vertical bars now indicate the parameters you
set for the selected mass.
5 To set the parameters for each mass you want to integrate, repeat Step 1 through
Step 4.
You can set different integration parameters for each mass.
NOTE Before setting your own integration parameters, ChemStation enables you to view
the default parameters using the integration window from the time chart display. To
use the integration window, click the Control Box Menu in the display window and
then click Display Integration Window. You can use this feature only if you are
viewing Extracted Ion Charts.
Integrating Acquisition Parameters
When you have set the integration parameters you want, you can display and edit
those parameters for all masses. To do so, complete the following steps:
1 Select Data Analysis>>Main Panel.
The ICP-MS Data Analysis window appears.
2 Select FullQuant>>Integration Parameters.
The Integration Parameters dialog box appears, showing the parameters and cor-
rection set for each mass listed.
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