Agilent Technologies G1289 User Manual

Introduction to Headspace and to the 7694 Headspace Sampler
Modes of Operation
19
Figure 8. Purge. S1 and S2 are open (S2 is open for 30 seconds).
Modes of Operation
The 7694 Headspace Sampler has two modes of operation—standard
headspace extraction and multiple headspace extraction.
Standard Headspace Extraction
In standard headspace extraction mode, one extraction is made per vial. The
GC run starts when the sample is injected into the GC inlet. In order to
Carrier
gas flow
Auxiliary gas
flow for vial
pressurization
Mass flow
controller
Pressure
regulator
Pressure
transducer
Pressure
transducer
Vent
S1
S2
1
2
3
4
5
6
Flow
restrictor
Sample
loop
To GC
Headspace
vial
Needle
Carrier gas
Auxiliary gas

Agilent Technologies G1289 Specifications

General

Brand	Agilent Technologies
Model	G1289
Category	Laboratory Equipment
Language	English