EarthRef.org Reference Database (ERR) -- Tyler et al. 2000

EarthRef.org Reference Database (ERR)
Development and Maintenance by the EarthRef.org Database Team

Detailed Reference Information

Tyler et al. 2000

Tyler, S.C., Ajie, H.O., Rice, A.L., Cicerone, R.J. and Tuazon, E.C. (2000). Experimentally determined kinetic isotope effects in the reaction of CH₄ with Cl: Implications for atmospheric CH₄. Geophysical Research Letters 27: doi: 10.1029/1999GL011168. issn: 0094-8276.

We report experimental values for the carbon and hydrogen kinetic isotope effects (KIEs) in the reaction of CH4 with Cl at temperatures between 273 and 350 K. Isotope ratio mass spectrometry was utilized to measure 13CH4/12CH4 and CH3D/CH4 ratios on samples taken from a 5870-L reaction chamber. At 299 K, kc12/kc13=1.0621¿0.0001(2&sgr;) and kh/kd=1.474¿0.020(2&sgr;). For both KIEs, the ratio decreased with increasing temperature over the range studied. These results agree well with experimental studies using tunable diode laser absorption spectroscopy and FTIR absorption spectroscopy and with a recent theoretically-calculated set of values. ¿ 2000 American Geophysical Union

BACKGROUND DATA FILES

	Abstract

Keywords
Atmospheric Composition and Structure, Atmospheric Composition and Structure, Chemical kinetic and photochemical properties, Atmospheric Composition and Structure, Instruments and techniques, Geochemistry, Isotopic composition/chemistry

Journal
Geophysical Research Letters
http://www.agu.org/journals/gl/

Publisher
American Geophysical Union
2000 Florida Avenue N.W.
Washington, D.C. 20009-1277
USA
1-202-462-6900
1-202-328-0566
service@agu.org