Altering The Display - Agilent Technologies 7500 ICP-MS Operator's Manual

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Agilent 7500 ICP-MS ChemStation Operator's Manual
Running a Sample Analysis
The detector mode is reflected in the acquired data when ChemStation finishes data
acquisition. Therefore, snapshot data cannot save the correct detector mode. The
mass number, for which Analog is selected in Detector Mode, are handled as data
acquired in the analog mode, and the other mass numbers are handled as data
acquired in the pulse mode.
As the Agilent 7500 acquires data, ChemStation updates the spectrum in real time
until the acquisition finishes. During acquisition, the spectrum appears in blue;
when acquisition is complete, the spectrum changes to green. At this point, the data
is saved and can be loaded into the Data Analysis window.
Alternatively, you can launch the data analysis application from the Acquisition
screen by clicking the Data Analysis push button. ChemStation automatically loads
the last data file acquired into the Data Analysis window. You can also click on the
Tabulate/Mass push button to obtain counts for the masses analyzed. For more
information about data analysis, refer to Chapter 9, "Viewing Spectra".
You can change the type and scale of the Real-Time display. See the following
section, "Altering the Display".
If you are analyzing samples using a method for Time Resolved Analysis or Time
Program Acquisition, ChemStation displays up to 12 masses in the Real-Time
display window. ChemStation displays the masses in two plots, each showing up to
six masses. You can click Stop, Restart, and Plot. Clicking Plot opens the Display
Parameters dialog box, which enables you to select the mass, order, and color of the
mass plot.

Altering the Display

To alter the information displayed in the Real-Time window, choose any of the
following:
• To adjust the vertical scale of the display, click the up (↑) or down (↓) arrow. Or,
click the bar below the arrows and then click an appropriate scale in the
drop-down list that appears.
• To display the information using a logarithmic intensity scale, click the Log
check box.
• To display the information in counts per second, click the CPS check box.
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