Short name:
FTIR

Full name:
Bomem FTIR - First Floor Chamber

What is being measured:
gas phase organics (including oxygenates, halogenated species and nitrates) and inorganics (e.g., CO, CO2, NO, NO2, HNO3, ...)

Sampling Protocol:
Online

Manufacturer:
Bomem

Model:
DA3

Instrument year :
1986

Data recording software:
Bomem / Grams

Data analysis software:
Bomem / Grams

Raw data time resolution:
180 seconds

Analysis data averaging:

Detection limit:
10's of ppb typical

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

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

Sampling method:

Sample preparation method:

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

Length of tubing (cm):

Instrument flow rate:

Tubing inner diameter:

Tubing material:

Chemical identification method:
From standard infrared spectra, usually recorded in house.

Data analysis method:
Built-in spectral subtraction routines are used for quantification.

Quantification method:
Beer's Law absorption

Calibration method:

Calibration drift estimate:

Calibration schedule:

Uncertainty estimation method:
Derived from a combination of uncertainty in the absorption cross section (usually 3-5%), and the uncertainty in conducting the spectral subtraction.

Known interferences:

Link to supplemental information:

Additional notes:

Measurement uncertainty:
+/- (5% + 2e12 molec cm-3) is typical

Measurement units:
All measurements are molecule cm-3