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Agilent 7500 ICP-MS ChemStation Operator’s Manual
Viewing a Time Chart
Using the Overlay Feature
ChemStation provides an overlay feature that enables you to view signals for several
Extracted Ion Charts in one chart. For example, if you have four Extracted Ion
Charts showing in the display window, you can use the overlay feature to change the
display to one chart showing a signal for each of the four masses.
NOTE You cannot view integration windows when you are in the Overlay mode. See the
“Analyzing Results Using a Time Chart” section later in this chapter.
To use the Overlay feature, ensure that Extracted Ion Charts show in the display
window and complete the following steps:
1 Click the Control Box Menu in the display window.
The window menu appears.
2Click Overlay.
One display appears showing a signal for each of the masses previously shown in
the Extracted Ion Charts. A label for each signal appears in the upper left corner of
the display, and each signal appears in the same color as its label.
If you want to view the number of counts for each of the selected masses, display
the Count Box. See “Using the Display Count Box” in this chapter for information.
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