Status
Status
Operational
The UC Berkeley thermal-dissociation laser-induced fluorescence (TD- LIF) instrument detects NO2 directly and detects total peroxynitrates (ΣPNs ≡ PAN + PPN +N2O5 + HNO4. . .), total alkyl- and other thermally stable organic nitrates (ΣANs), and HNO3 following thermal dissociation of these NOy species to NO2. The sensitivity for NO2 at 1 Hz is 30 pptv (S/N=2) with a slope uncertainty of 5%. The uncertainties for the dissociated species are 10% for ΣPNs and 15% for ΣANs and HNO3.
Instrument Type
Aircraft
Recent Missions
Point(s) of Contact
(POC; PI),
(Mgr)
Measurement Details
Range of Measurement
In situ
Additional Information
Mission-Specific Writeups
Document
Publications
Wooldridge, P.J., et al. (2010), Total Peroxy Nitrates ( PNs) in the atmosphere: the Thermal Dissociation-Laser Induced Fluorescence (TD-LIF) technique and comparisons to speciated PAN measurements, Atmos. Meas. Tech., 3, 593-607, doi:10.5194/amt-3-593-2010.
Day, D.A., et al. (2002), A thermal dissociation laser-induced fluorescence instrument for in situ detection of NO2, peroxy nitrates, alkyl nitrates, and HNO3, J. Geophys. Res., 107, doi:10.1029/2001JD000779.
Cleary, P.A., et al. (2002), Laser-induced fluorescence detection of atmospheric NO2 with a commercial diode laser and a supersonic expansion, Appl. Opt., 41, 6950-6956.
Thornton, ., et al. (2000), Atmospheric NO2: In Situ Laser-Induced Fluorescence Detection at Parts per Trillion Mixing Ratios, Anal. Chem., 72, 528-539, doi:10.1021/ac9908905.
