Agilent Technologies 7500 ICP-MS Operator's Manual page 261

7 Do the following to start the rinse before the end of acquisition:
N O T E
N O T E
Agilent 7500 ICP-MS ChemStation Operator's Manual
Creating a Method
1) Select the Execute Pre-emptive Rinse checkbox.
2) In the Pre-emptive Time text box, set the number of seconds before the end of
acquisition at which you wish to start the rinse.
If you proceed with preemptive rinse with an improper preemptive time, the rinse
solution may be introduced during acquisition. Be very careful when specifying
preemptive times. Keep in mind that performing Intelligent Rinse through
preemptive rinse will prevent monitoring of threshold values during acquisition.
To proceed with Intelligent Rinse, set a preemptive time so that the rinse step
selected as the Intelligent Rinse target ends after acquisition ends.
· To repeat the acquisition, set a time shorter than the individual repeated data
acquisition times.
· For Multi Tune mode, set a time shorter than the last tune step. A tune step with a
long acquisition time at the end can lengthen preemptive times.
If Intelligent Rinse is selected for Step 1
Acquisition
Normal
Acquisition
If Preemptive
Time is Set
Preemptive Time < Rinse Time in After Acquisition (Rinse Port) + Rinse Time in Step 1 in After Acquisition (Rinse Vial)
If you start the rinse before the end of acquisition, the Rinse Speed setting will be
disabled until acquisition is complete.
End of Acquisition
Rinse Time of Rinse Step
Rinse Time Selected as Target
at Rinse Port for Intelligent Rinse
Preemptive time
Rinse Time of Rinse Step
Rinse Time Selected as Target
at Rinse Port for Intelligent Rinse
Set the preemptive time so that
Intelligent Rinse completes after
the end of acquisition.
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