Please use this identifier to cite or link to this item:
Title: A compact broadband cavity enhanced absorption Spectrometer for detection of atmospheric NO2 using light emitting diodes
Authors: Langridge, J. M.
Ball, S. M.
Jones, R. L.
First Published: 2006
Citation: Analyst, 2006, 131 (8), pp.916-922
Abstract: A compact and low power detector has been developed for the in situ measurement of atmospheric NO2 using broadband cavity enhanced absorption spectroscopy. Absorption by the O2–O2 collisional pair was used to determine the cavity mirror reflectivity, thus enabling the retrieval of absolute absorber concentrations by differential spectral fitting techniques. Quantitative amounts of ambient NO2 (between 3 and 32 parts per billion) were retrieved from spectra recorded in the presence of ambient aerosol with statistical uncertainties approaching 100 ppt for a 60 s averaging period. The instrument's response was compared to that of a commercial chemiluminescence detector and was found to agree to within 6%.
DOI Link: 10.1039/b605636a
ISSN: 0741-7918
Type: Article
Appears in Collections:Published Articles, Dept. of Chemistry

Files in This Item:
There are no files associated with this item.

Items in LRA are protected by copyright, with all rights reserved, unless otherwise indicated.