Types Of Hs Extractions And Injections - Agilent Technologies 7697A Advanced Operation Manual

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How the 7697A Headspace Sampler Works

Types of HS Extractions and Injections

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The 7697A HS can extract and inject sample once or
multiple times per vial. The HS provides a selection for
extraction type as an advanced function.
basic flow paths during an injection cycle, where the sample
loop is flushed into the GC.
Transfer
line
Carrier gas
Figure 8 HS injection cycle
Refer to Figure 9 for a diagram of the flow paths within the
HS sampler (using GC carrier).
Figure 8
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3
5
2
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1
Vent
shows the
Sample probe
Advanced Operation