Agilent Technologies 7820A

Inlets 3
Advanced User Guide 21
Inlet Overview
Table 1 Comparing inlets
Inlet Column Mode
Sample
concentration
Comments
Sample
to column
Split/splitless Capillary Split
Pulsed split
*
Splitless
Pulsed splitless
*
High
High
Low
Low
Useful with large
injections
Useful with large
injections
Very little
Very little
All
All
Purge packed
column
Packed
Large capillary
n/a
n/a
Any
Any OK if resolution
not critical
All
All
Packed column Packed n/a Any All
Cool on-column Capillary n/a Low or labile Minimal
discrimination and
decomposition
All
* Pulsed split and pulsed splitless modes are not available for split/splitless inlets on EPR (electronic pneumatics regulation) equipped GCs.