Agilent Technologies 7500 ICP-MS

4-47
Agilent 7500 ICP-MS ChemStation Operator’s Manual
Tuning
of the lens voltage. Adjustment of the reaction gas flow rate is done by measuring
the flow rate correlation of the BEC (background equivalent concentration) with a
blank solution and a standard solution. This is described below.
It is described for adjusting the sensitivity of the Agilent 7500ce for the next 3
modes in this section.
• Standard Mode
• Reaction Mode (H
2
Mode)
• Reaction Mode (He Mode)
NOTE Once a tuning parameter is determined, and a matrix sample is not introduced, only
a fine adjustment of voltage, flow rate, etc. is needed for daily tuning.
NOTE It is good practice for tuning parameter to be saved under different file names after
tuning in each mode.
Standard Mode (When Reaction Gas is Not Used)
Tune according to the function of each parameter above (Page 4-48) and the table of
each parameter's value.
It is also possible to tune in standard mode by using Autotune (Page 4-102).