Agilent 990 Micro GC User Manual 61
5 Micro GC Channels
Carrier Gas 62
Dynamic Electronic Gas Control (DEGC) 63
Inert Sample Path 63
Injector 63
Column 64
Replacing Channel Column, Injector Die, and TCD 74
Backflush Option 75
Backflush to Detector 79
TCD Detector 84
The instrument is a dual channel cabinet (one or two GC channels). Two cabinets can be
connected to form a quad channel system (up to four GC channels). A GC channel contains a gas
regulator, an injector, a column, and a TCD detector. See Figure 25 on page 62.
This chapter provides a brief discussion on the major components in the Micro GC and the
backflush option.