Agilent Technologies 7500 ICP-MS Operator's Manual page 47

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Agilent 7500 ICP-MS ChemStation Operator's Manual
Configuration
ISIS External Pump:
To enable this checkbox, select ISIS for Type in Sample Introduction in the
ICP-MS Configuration dialog box, then select Discrete Sampling as the ISIS
Application.
Select this checkbox to use ISIS with an external pump. Selecting the checkbox
displays the following dialog box. Confirm that ISIS and the external pump are
connected.
Connection Confirmation dialog box
The only compatible pump is the Metrohm 818 IC Pump. Do not attempt to connect
any other pumps.
• Plasma Ignition Mode
Optimal Plasma ignition parameters differ depending upon whether the sample is
an aqueous solution or an organic solvent.
Aqueous Solution: Selected when the sample is an aqueous solution.
Organic Solvent: Selected when the sample is an organic solvent.
• Post Analysis Peri Pump Rotation
When the Enable Post Rotation is selected, the peristaltic pump will periodically
rotate when the ICP-MS is in standby mode. This function is to protect the peri-
staltic pump tubing when you cannot remove the peristaltic pump tubing immedi-
ately after turning off the plasma. For example, the keyword is selected in the
sample log table to turn off the plasma automatically.
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