Instrument - Cavity attenuated phase shift Spectroscopy

Short name:
CAPS NO2 monitor (near)

Full name:
Cavity attenuated phase shift Spectroscopy

What is being measured:
NO2

Sampling Protocol:
Online

Manufacturer:
Aerodyne Inc.

Model:
N/A

Instrument year :
None specified

Data recording software:

Data analysis software:

Raw data time resolution:
1s

Analysis data averaging:

Detection limit:
0.1 ppb (10 s)

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

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

Sampling method:
Direct sampling

Sample preparation method:

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

Length of tubing (cm):
4663

Instrument flow rate:
900 ccm

Tubing inner diameter:
1/4 inch

Tubing material:
FEP Teflon

Chemical identification method:

Data analysis method:
The software gives the NO2 concentration in ppb

Quantification method:

Calibration method:
Calibration with standard NO2/N2 gas with uncertainty better than %10 (preferably %5)

Calibration drift estimate:
Medium (on the order of days)

Calibration schedule:
As Needed

Uncertainty estimation method:
Standard deviation of the time averaging data

Known interferences:
Baseline drift

Link to supplemental information:

Additional notes:

Measurement uncertainty:
NA

Measurement units:
ppb

Characterizations