Jump to main content
Jump to site search

Issue 30, 2008
Previous Article Next Article

Incoherent broad-band cavity-enhanced absorption spectroscopy of the marine boundary layer species I2, IO and OIO

Author affiliations

Abstract

The novel combination of incoherent broad-band cavity-enhanced absorption spectroscopy (IBBCEAS) and a discharge-flow tube for the study of three key atmospheric trace species, I2, IO and OIO, is reported. Absorption measurements of I2 and OIO at λ = 525–555 nm and IO at λ = 420–460 nm were made using a compact cavity-enhanced spectrometer employing a 150 W short-arc Xenon lamp. The use of a flow system allowed the monitoring of the chemically short-lived radical species IO and OIO to be conducted over timescales of several seconds. We report detection limits of ∼26 pmol mol−1 for I2 (L = 81 cm, acquisition time 60 s), ∼45 pmol mol−1 for OIO (L = 42.5 cm, acquisition time 5 s) and ∼210 pmol mol−1 for IO (L = 70 cm, acquisition time 60 s), demonstrating the usefulness of this approach for monitoring these important species in both laboratory studies and field campaigns.

Graphical abstract: Incoherent broad-band cavity-enhanced absorption spectroscopy of the marine boundary layer species I2, IO and OIO

Back to tab navigation

Publication details

The article was received on 15 Feb 2008, accepted on 29 Apr 2008 and first published on 13 Jun 2008


Article type: Paper
DOI: 10.1039/B802618A
Citation: Phys. Chem. Chem. Phys., 2008,10, 4471-4477
  •   Request permissions

    Incoherent broad-band cavity-enhanced absorption spectroscopy of the marine boundary layer species I2, IO and OIO

    S. Vaughan, T. Gherman, A. A. Ruth and J. Orphal, Phys. Chem. Chem. Phys., 2008, 10, 4471
    DOI: 10.1039/B802618A

Search articles by author

Spotlight

Advertisements