How Fid Units Are Displayed In Agilent Data Systems And On The Gc - Agilent Technologies 7890 Series Advanced Operation Manual

5
Detectors
H
2
Frit
Valve
PS
Restrictor
PS = Pressure Sensor

How FID units are displayed in Agilent data systems and on the GC

170
Makeup Air
Frit Frit
Valve Valve
PS
Restrictor
Table 42
Property
Dynamic range
Sensitivity
Selectivity
The GC displays the FID signal in picoamperes (pA). The
following table lists how different data systems convert the
display units to reporting units.
EPC Module
PS
Restrictor
Properties of the FID
Value/Comment
7
1 x 10
10 to 100 picograms of an organic compound
dependent on the molecular structure.
Responds to all organic compounds (C-H bonds)
except those which do not burn or ionize in the
hydrogen-air flame. There is little or no response for
H O, CO , CO, N
2 2
Formaldehyde and heavily halogenated compounds
give minimal response.
Vent
Column
, O CS or inert gases.
2 2 2
Advanced Operation Manual