Instrument - Formaldehyde Laser Induced Fluorescence instrument from Keutsch Group (Harvard)

Short name:
FORMLIF (Keutsch)

Full name:
Formaldehyde Laser Induced Fluorescence instrument from Keutsch Group (Harvard)

What is being measured:

Sampling Protocol:
Online

Manufacturer:
Custom

Model:
Custom

Instrument year :
None specified

Data recording software:
Inquire with PI

Data analysis software:
Inquire with PI

Raw data time resolution:
1 second

Analysis data averaging:
None

Detection limit:
Inquire with PI

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

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

Sampling method:
Direct sampling to chamber

Sample preparation method:

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

Length of tubing (cm):
0.03

Instrument flow rate:
5

Tubing inner diameter:

Tubing material:
FEP Teflon

Chemical identification method:
Fluorescence

Data analysis method:
Inquire with PI

Quantification method:
Quantitative cross sections are applied to the data. Inquire with PI for more information

Calibration method:
Inquire with PI

Calibration drift estimate:

Calibration schedule:

Uncertainty estimation method:
Inquire with PI for more information. Uncertainties are 10 percent of the reported value

Known interferences:

Link to supplemental information:
DiGangi, J., Boyle, E., Karl, T., Harley, P., Turnipseed, A., Kim, S., Cantrell, C., Maudlin Iii, R., Zheng, W., and Flocke, F.: First direct measurements of formaldehyde flux via eddy covariance: Implications for missing in-canopy formaldehyde sources, Atmos. Chem. Phys., 11, 10565-10578, doi:10.5194/acp-11-10565- 2011, 2011. Hottle, J. R., Huisman, A. J., DiGangi, J. P., Kammrath, A., Galloway, M. M., Coens, K. L., and Keutsch, F. N.: A laser induced fluorescence-based instrument for in-situ measurements of atmospheric formaldehyde, Environ. Sci. Technol., 43, 790–795, doi:10.1021/es801621f, 2008.

Additional notes:
PI contact information: Frank Keutsch, (617) 495-1878, keutsch@seas.harvard.edu

Measurement uncertainty:

Measurement units:

Characterizations