High precision spectroscopy of 32S, 33S and 34S sulfur dioxide: Ultraviolet absorption cross sections and fractionation constants
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High precision spectroscopy of 32S, 33S and 34S sulfur dioxide: Ultraviolet absorption cross sections and fractionation constants. / Danielache, Sebastian Oscar; Eskebjerg, Carsten; Johnson, Matthew Stanley; Ueno, Yuichiro; Yoshida, Naohiro.
I: Journal of Geophysical Research - Atmospheres, Bind 113, 2008, s. D17314.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - High precision spectroscopy of 32S, 33S and 34S sulfur dioxide: Ultraviolet absorption cross sections and fractionation constants
AU - Danielache, Sebastian Oscar
AU - Eskebjerg, Carsten
AU - Johnson, Matthew Stanley
AU - Ueno, Yuichiro
AU - Yoshida, Naohiro
N1 - Paper id:: doi:10.1029/2007JD009695
PY - 2008
Y1 - 2008
N2 - [1] We report measurements of the ultraviolet absorption cross sections of 32SO2, 33SO2,and 34SO2, recorded from 30,300 to 52,500 cm1 (330 to 190 nm) at 293 Kwith a resolution of 25 cm1. The 33SO2 sample was produced by the combustionof isotopically enriched 33S while the 34SO2 and natural abundance samples were obtainedfrom commercial manufacturers. The spectrum of the natural abundance sampleis in agreement with previously published spectra. The spectra of the isotopicallypure species were retrieved using the isotopic composition of the samples.The 32SO2, 33SO2, and 34SO2 absorption spectra show rich vibrational structure,and the positions and widths of the peaks change with isotopic substitution in a complexfashion. The results imply that large wavelength-dependent and broadband isotopicfractionations are associated with the UV photolysis of SO2. Udgivelsesdato: 13 September 2008
AB - [1] We report measurements of the ultraviolet absorption cross sections of 32SO2, 33SO2,and 34SO2, recorded from 30,300 to 52,500 cm1 (330 to 190 nm) at 293 Kwith a resolution of 25 cm1. The 33SO2 sample was produced by the combustionof isotopically enriched 33S while the 34SO2 and natural abundance samples were obtainedfrom commercial manufacturers. The spectrum of the natural abundance sampleis in agreement with previously published spectra. The spectra of the isotopicallypure species were retrieved using the isotopic composition of the samples.The 32SO2, 33SO2, and 34SO2 absorption spectra show rich vibrational structure,and the positions and widths of the peaks change with isotopic substitution in a complexfashion. The results imply that large wavelength-dependent and broadband isotopicfractionations are associated with the UV photolysis of SO2. Udgivelsesdato: 13 September 2008
M3 - Journal article
VL - 113
SP - D17314
JO - Journal of Geophysical Research: Solid Earth
JF - Journal of Geophysical Research: Solid Earth
SN - 0148-0227
ER -
ID: 8804247