Agilent Technologies 7500 ICP-MS Operator's Manual page 510

C A U T I O N
N O T E
6 Fill in the ID Parameters panel.
Agilent 7500 ICP-MS ChemStation Operator's Manual
Performing an Isotope Dilution Analysis
Make sure the tune step used for data acquisition is the same as that selected here.
Otherwise, an error may occur.
• Background File
The name of the background file specified for count correction appears. The dis-
play is updated when you specify the standard file by clicking Browse.
Setting a background file allows the user to subtract background counts from
any data file. This subtracts the raw counts before calculation; the abundance for
each mass acquired in the background file is subtracted from the abundance of
the corresponding mass in non-background file.
• Interference Correction
Displays whether the interference correction specified for count correction is set
to ON or OFF. The display is updated when you specify the standard file by
clicking Browse.
To set the Background File and Interference Correction, select Method >> Data
Correction in the ICP-MS Data Analysis window.
• Edit
Press this button to change the parameters for the elements already selected for
output. When the Edit button is pressed, the Edit Element dialog box appears.
• Add
Press this button to specify a new element to be analyzed with the Isotope Dilu-
tion method. When the Add button is pressed, the Select Element dialog box
appears.
• Remove
Press this button to cancel the elements already selected for output. Select an
element from the display and press Remove.
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