Share Email Print
cover

Proceedings Paper

Laser flash photolysis studies of atmospheric free-radical chemistry using optical diagnostic techniques
Author(s): Paul H. Wine; J. Michael Nicovich; Anthony J. Hynes; Robert E. Stickel; R. Peyton Thorn; Mian Chin; Jeffrey A. Cronkhite; Christie J. Shackelford; Zhizhong Zhao; Edward P. Daykin; Cornelius A. van Dijk; Shouzhi Wang; Jill V. Steidl
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

Some recent studies carried out in our laboratory are described where laser flash photolytic production of reactant free radicals has been combined with reactant and/or product detection using time-resolved optical techniques to investigate the kinetics and mechanisms of important atmospheric chemical reactions. Discussed are (1) a study of the radical-radical reaction O + BrO yields Br + O2 where two photolysis lasers are employed to prepare the reaction mixture and where the reactants O and BrO are monitored simultaneously using atomic resonance fluorescence to detect O and multipass UV absorption to detect BrO; (2) a study of the reaction of atomic chlorine with dimethylsulfide (CH3SCH3) where atomic resonance fluorescence detection of Cl is employed to elucidate the kinetics and tunable diode laser absorption spectroscopy is employed to investigate the HCl product yield; and (3) a study of the aqueous phase chemistry of Cl2- radicals where longpath UV absorption spectroscopy is employed to investigate the kinetics of the Cl2- + H2O reaction.

Paper Details

Date Published: 12 February 1993
PDF: 13 pages
Proc. SPIE 1715, Optical Methods in Atmospheric Chemistry, (12 February 1993); doi: 10.1117/12.140183
Show Author Affiliations
Paul H. Wine, Georgia Tech Research Institute (United States)
J. Michael Nicovich, Georgia Tech Research Institute (United States)
Anthony J. Hynes, Georgia Tech Research Institute (United States)
Robert E. Stickel, Georgia Tech Research Institute (United States)
R. Peyton Thorn, Georgia Tech Research Institute (United States)
Mian Chin, Georgia Tech Research Institute (United States)
Jeffrey A. Cronkhite, Georgia Tech Research Institute (United States)
Christie J. Shackelford, Georgia Tech Research Institute (United States)
Zhizhong Zhao, Georgia Tech Research Institute (United States)
Edward P. Daykin, Georgia Tech Research Institute (United States)
Cornelius A. van Dijk, Georgia Tech Research Institute (United States)
Shouzhi Wang, Georgia Tech Research Institute (United States)
Jill V. Steidl, Georgia Tech Research Institute (United States)


Published in SPIE Proceedings Vol. 1715:
Optical Methods in Atmospheric Chemistry

© SPIE. Terms of Use
Back to Top