Agilent Technologies 7500 ICP-MS Operator's Manual page 486

6 Click the arrow under Elements in the Internal Standard Elements box.
7 Select the internal standard element from the list.
N O T E
8 Select up to 4 elements for internal standards, repeating steps 5 and 6 as needed.
9 Click OK.
Agilent 7500 ICP-MS ChemStation Operator's Manual
Performing a Semiquantitative Analysis
All elements are in this list.
The mass to be used as the internal standard will automatically be selected from the
SemiQuant Parameters.
The mass defined in the Internal Standard Correction and the SemiQuant parameters
must be the same.
You can specify up to four elements to be used as internal standards. If only one
element is selected, all reported elements will be corrected using the single internal
standard element specified. If more than one internal standard element is selected,
the internal standard correction factor used for each element between any two
adjacent internal standard elements is derived by interpolation of the linear response
between those two internal standard elements.
Mass displays the mass of the specified element as set in the semiquant parameters
panel.
The internal standard correction will now be set and ChemStation returns to the
ICP-MS Data Analysis window.
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