Inlet Overview - Agilent Technologies 7890 Series Advanced Operation Manual

3
Inlets

Inlet Overview

Table 3 Comparing inlets
Inlet Column
Split/splitless Capillary
Multimode Capillary
Cool on-column Capillary
Packed column Packed
Large capillary
Programmed Capillary
temperature
vaporization
Volatiles interface Capillary
(for use with
external volatiles
sampler)
36
Sample
Mode concentration
Split High
Pulsed split High
Splitless Low
Pulsed splitless Low
Split High
Pulsed split High
Splitless Low
Pulsed splitless Low
Solvent vent Low
Direct
n/a Low or labile
n/a Any
n/a Any
Split High
Pulsed split High
Splitless Low
Pulsed splitless Low
Solvent vent Low
Direct Low
Split High
Splitless Low
Sample
Comments
to column
Very little
Useful with large Very little
injections
All
Useful with large
All
injections
Very little
Very little
All
All
Multiple injections Most
concentrate
analytes and
vent solvent
All
Minimal All
discrimination
and
decomposition
All
OK if resolution All
not critical
Very little
Very little
All
All
Multiple injections Most
concentrate
analytes and
vent solvent
Lowest dead All
volume
Very little
Max flow = 100
All
mL/min
Advanced Operation Manual