Tuning - Agilent Technologies 7500 ICP-MS Operator's Manual

Agilent 7500 ICP-MS ChemStation Operator's Manual

Tuning

Tuning
Tuning allows you to monitor and adjust Agilent 7500 performance before
beginning sample analysis. Tuning and sample analysis should be performed in
analysis mode. You can change tuning parameters to adjust the instrument's
condition for a particular application. The tuning parameters can be saved to a file
and used for the next tuning session.
Optimization enables autotune, tuning for a specific purpose, or resolution of a
tuning problem to achieve optimum sensitivity. The Agilent 7500 ChemStation
software simplifies this task. Within the tuning windows, you can adjust parameters
for the sample introduction, torch box, analyzer and detector system components.
You tune the Agilent 7500 by monitoring the signal produced from running a tuning
solution through the instrument. Then, if necessary, you adjust the operating
parameters until the instrument's signal meets performance requirements.
For most applications, use a tuning solution of four elements covering the whole
range of masses. This ensures good Agilent 7500 performance when analyzing all
masses. For special applications requiring ultimate sensitivity at a certain mass, you
can tune the instrument using an element in that mass range. For routine use, the
Agilent 7500 has ample sensitivity at all masses simultaneously.
In this chapter the basic tuning method at the time of mainly using the standard torch
has been explained. Please see the "Option Instruction Manual" for the details of
tuning when the ShieldTorch is used.
4-2