10 Operating Guide
1 Introduction
Chromatography Using a GC
Chromatography is the separation of a mixture of
compounds into individual components.
There are three major steps involved with separating and
identifying components of a mixture using a GC. They are:
1 Injecting a sample into the GC. (This takes place at the
inlet.)
2 Separating the sample into individual components. (This
takes place inside the column in the oven.)
3 Detecting what compounds were in the sample. (This is
done in the detector.)
During this process, status messages from the Agilent 7890A
GC are displayed, and user changes to parameter settings
can be made through the operating panel.
Each part of this process is described in brief on the
following pages of this document. Refer to the Advanced
User Guide for more details.
Inlet
Oven
Detector
Operating panel
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