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Agilent 7500 ICP-MS ChemStation Operator’s Manual
Tuning
Tuning the ShieldTorch (Cool plasma)
Ca (40 AMU) can be analyzed with the cool plasma conditions not the normal
plasma conditions. To do that, delete the 40 AMU in the Prohibited Masses of the
Configuration task.
CAUTION When you return to the normal plasma conditions from the cool plasma condition,
you must reset the 40 AMU in the Prohibited Masses because detector gets damage.
Tuning solution
Li, Y, Ce, and Tl solution at 1 ppb: for tuning the mass resolution/axis
Co solution at 1 or 10 ppb: for tuning the sensitivity
NOTE In the cool plasma condition, Y cannot be used because it generates the oxide ion
(YO), which decreases the sensitivity of 89amu(Y).
Tuning procedure
To use the ShieldTorch in the cool plasma condition, perform the following steps:
1 Install the Shield plate.
2 Aspirate a tuning solution containing 10 ppb (or 1 ppb) Co and select.
3 Set the tuning parameters as the typical values shown in the table.
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