Instrument - gas chromatograph - flame ionization detector
Short name:
GC-FID
Full name:
gas chromatograph - flame ionization detector
What is being measured:
hydrocarbons
Sampling Protocol:
Online
Manufacturer:
Agilent
Model:
6890N
Instrument year
:
None specified
Data recording software:
Chemstation
Data analysis software:
Chemstation
Raw data time resolution:
900 s
Analysis data averaging:
Detection limit:
1-10 ppb
Sensitivity to temperature (and correction method, if applicable):
:
Minor, no correction
Sensitivity to relative humidity (and correction method, if applicable):
:
Minor, no correction
Sampling method:
Direct sampling with custom injection method
Sample preparation method:
Sample residence time (chamber to instrument) (seconds):
Length of tubing (cm):
200
Instrument flow rate:
0.5 lpm
Tubing inner diameter:
0.16 in
Tubing material:
FEP Teflon
Chemical identification method:
Comparison of retention time with primary standards
Data analysis method:
Manual peak integration on Chemstation software
Quantification method:
Calibration method:
Calibrated with primary standards diluted to relevant concentrations in pillow bags
Calibration drift estimate:
Low (on the order of weeks)
Calibration schedule:
As Needed
Uncertainty estimation method:
Estimated using precision of repeat measurements of standards
Known interferences:
Can convert hydroperoxides and possibly other labile oxygen-containing functional groups to carbonyls
Link to supplemental information:
Additional notes:
Measurement uncertainty:
5 ppbv unless otherwise noted
Measurement units:
ppbv unless otherwise noted