Short name:
GC-FID

Full name:
Gas chromatograph with flame ionization detector (Seinfeld)

What is being measured:
Hydrocarbons, some oxygenated hydrocarbons

Sampling Protocol:
Online

Manufacturer:
Agilent

Model:
6890N

Instrument year :
None specified

Data recording software:
Chemstation

Data analysis software:
Chemstation

Raw data time resolution:
depends on method (usually 10 - 20 min)

Analysis data averaging:
None

Detection limit:
1-10 ppbv

Sensitivity to temperature (and correction method, if applicable): :

Sensitivity to relative humidity (and correction method, if applicable): :

Sampling method:
Direct sampling

Sample preparation method:
None

Sample residence time (chamber to instrument) (seconds):

Length of tubing (cm):
30

Instrument flow rate:
0.5 LPM

Tubing inner diameter:

Tubing material:
PFA Teflon

Chemical identification method:
Needs to be calibrated for retention time

Data analysis method:
Manually integrating peaks.

Quantification method:
Applying sensitivity factor for each analyte.

Calibration method:
Calibrations done by making "pillow bags" of each analyte at different concentrations and introducing the standards into the GC-FID.

Calibration drift estimate:
Low (on the order of weeks)

Calibration schedule:
After changing columns

Uncertainty estimation method:
Based on precision of integration and errors in absolute concentration of standards.

Known interferences:
Known to convert organic hydroxy hydroperoxides, hydroxy epoxides, hydroxy nitrates, and other compounds with labile groups into carbonyls. See Rivera-Rios et al. (https://agupubs.onlinelibrary.wiley.com/doi/full/10.1002/2014GL061919)

Link to supplemental information:

Additional notes:

Measurement uncertainty:

Measurement units: