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Agilent 7500 ICP-MS ChemStation Operator’s Manual
Viewing Spectra
Using the Display Count Box
Additionally, you can view the counts acquired for each point by using the Count
Box. This ChemStation feature gives you an easy method to check the total counts
or CPS at any point in each peak. You can use this feature to estimate the
concentration of any element relative to the internal standard.
To display the count box, complete the following steps:
1 Click the horizontal Control Box Menu at the top left corner of the mass
spectrum display window.
The window menu appears.
2Click Display Count Box at the bottom of the menu.
The Count Box appears, showing the AMU value at that point and the intensity in
either total counts or CPS. The letter following the value indicates the detector mode
used analog (A) or pulse (P).
Count Box
3 To view counts at any point, place the cursor at the specific point on the display
and look at the count box.
If the spectral display appears empty at the cursor but the count box shows counts
for that mass, you may want to change the vertical scale of the display. For
information, see “Changing the Vertical Scale of a Spectral Display” later in this
chapter.
NOTE The count box displays until you close it by double-clicking the count box Control
Box Menu or by exiting the spectral display.
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