Agilent Technologies 7500 ICP-MS Operator's Manual page 172

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Agilent 7500 ICP-MS ChemStation Operator's Manual
Tuning
there is no error in the P/A factor, it is updated to the latest P/A factor.
Cancel the check of the Merge in the current data box when adjusting a new P/A
factor.
When the tuning task is completed, the Merge in the current data box is disabled and
the previous value of the P/A factor is not used. Do not finish the tuning task till the
P/A adjustment is completed.
When the P/A factor's error still appears from tuning using a low concentration
solution, it may be caused by a high background due to a polyatomic ion, etc. In this
case, this element will be analyzed in analog mode. Remove this element from the
P/A Factor tuning dialog box.
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