Agilent Technologies 7500 ICP-MS Operator's Manual page 368

Agilent 7500 ICP-MS ChemStation Operator's Manual
Viewing Spectra
Library Matching Template (e.g. Ba)
6 To place more templates, repeat the above steps.
The templates for additional elements appear. The template for each element has a
unique color and shows the element name at the top of Base AMU. The templates
can be displayed up to ten elements.
To add two templates together, click the Sum Peaks check box and then OK in the
Library Matching dialog box. ChemStation enables you to see how the combined
template matches the peak you are analyzing. ChemStation shows combined masses
in red.
When the mass used as the template of another element is applied as the Base AMU,
a rest peak that the total signal minus template is counted as 100% of the element,
and the second template will be displayed based on a height of the rest peak. At the
mass you selected, the template matches the peak height for the mass. If the element
template fits - i.e. if the other template bars all match up with peaks in the spectrum,
at their corresponding heights, the element ID is probably correct. If not, try other
elements at the same mass to see if there is a better fit. If no element fits, then poly-
atomic interference is probable.
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