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Agilent 7500 ICP-MS ChemStation Operator’s Manual
Tuning
7 Select the Plot check boxes of the channels to be displayed on the graph in the
ICP-MS Tuning - Sensitivity window.
8 In the Displayed Tuning Parameters tree display, select the check boxes of the
tuning parameters to be displayed in the ICP-MS Tuning - Sensitivity window.
Parameters can be displayed or hidden by clicking on the [+]/[-] box.
Clicking on a parameter check box will alternately select or deselect the parameter.
A parameter in gray indicates that only some of the parameters contained within are
selected.
9Click OK.
Clicking OK closes the Acquisition Parameters - Sensitivity window and displays
the entered settings in the ICP-MS Tuning - Sensitivity window.
10 Put the sample uptake tube into the tuning solution.
Wait for uptake of the sample to the nebulizer.
11 Click Start to monitor the Agilent 7500’s signal and view the numerical values in
the real-time display.
As the signal appears, ChemStation inserts numerical values for the count, mean,
RSD, and ratio.
The window includes a box for a real-time display of the instrument’s signal. The
box contains up to 200 data points. The current counts of each mass are given, and
the mean and RSD (relative standard deviation) of the signal are given for the data
points shown in the display.
NOTE When you check Auto Vert. Range check box, the vertical range of the real-time
display is adjusted automatically.
NOTE You can print a copy of the real-time display at any time during the tuning procedure.
See “Generating a Tune Report” later in this chapter.
12 Adjust the tuning parameters if necessary.
Tuning parameters are shown in the tree display on the left side of the window.
Parameters can be displayed or hidden by clicking on the [+]/[-] box.
Indicated on the right side of each parameter in [ ] are the adjustment value and the
pre-adjustment numerical value (value stored in the tune file).
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