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HAPSITE ER Operating Manual
To edit the Inlet States grid, select an Inlet State from the drop-down menu. See
Figure 10-18.
Figure 10-18 Inlet States
The following choices are available for all Analyze methods in the Inlet States
column:
Line Purge. . . . . . . . . . . . . . . . . . . . Directs the sample throught the sample
pathway and out through the exhaust vent.
The sample does not pass through the
concentrator.
Foreflush. . . . . . . . . . . . . . . . . . . . . Directs the carrier gas to allow the sample to
flow out of the sample loop/concentrator and
onto the column.
Backflush . . . . . . . . . . . . . . . . . . . . Directs the carrier gas to the front end of the
column. This state will remove non-volatile
contaminants, while allowing the volatile
compounds to be separated on the column.
ISTune . . . . . . . . . . . . . . . . . . . . . . . Directs the internal standard to the MS for
tuning.
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