Laser-Induced Fluorescence Measurements of Formaldehyde in a Methane/Air Diffusion Flame.
Laser-Induced Fluorescence Measurements of Formaldehyde
in a Methane/Air Diffusion Flame.
Harrington, J. E.; Smyth, K. C.
Chemical Physics Letters, Vol. 202, No. 3-4, 196-202,
January 22, 1993.
diffusion flames; formaldehyde; lasers; fluorescence
Laser-induced fluorescence has been observed from the
formaldehyde electronic transition in a well
characterized, laminar methane/air diffusion flame
burning at atmospheric pressure. This represents the
first optical measurement in flames of naturally
occurring formaldehyde, an important intermediate in the
oxidation of hydrocarbons. Both 355 nm and tunable dye
laser excitation of fluorescence are demonstrated. The
observed fluorescence signals are corrected for
partition function effects and for estimated collisional
quenching rates to obtain relative concentration