Short name:
GC-FID

Full name:
Gas Chromatograph - Flame Ionization Detector

What is being measured:
VOCs, OVOCs, IVOCs

Sampling Protocol:
Offline

Manufacturer:
Hewlett Packard

Model:
6890

Instrument year :
None specified

Data recording software:
Agilent Chemstation 1.0

Data analysis software:
Manual Data Analysis

Raw data time resolution:
1 s

Analysis data averaging:

Detection limit:
100 pg

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

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

Sampling method:
Thermal desorption of Tenax adsorbent cartridges/Liquid injections

Sample preparation method:
Active sampling of adsorbent cartridges/Liquid dilutions

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

Length of tubing (cm):

Instrument flow rate:

Tubing inner diameter:

Tubing material:
N/A

Chemical identification method:
Retention time matching, Kovats Retention Index

Data analysis method:

Quantification method:
Peak area is converted to concentration based on: i) The known amount of mass added to the chamber, and the ratio of peak area before and after reaction ii) Calibration curve of standard liquid injections

Calibration method:
Calibration of standard liquid injections are performed by adding known volumes of volumetrically prepared standards.

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

Calibration schedule:

Uncertainty estimation method:
Uncertainty is estimated at +/- 5% due to uncertainties in sampling time for Tenax adsorbent cartridges, standard deviations of replicate measurements.

Known interferences:

Link to supplemental information:

Additional notes:

Measurement uncertainty:
(a) VOC (+/- 5%)

Measurement units:
All measurements from this instrument are converted to ppb