The application of laser fluorescence to detection of species in atmospheric pressure flames. Relative quenching rates of OH by H2O, H2, and CO

✍ Scribed by C. Morley

• Publisher: Elsevier Science
• Year: 1982
• Tongue: English
• Weight: 885 KB
• Volume: 47
• Category: Article
• ISSN: 0010-2180
• DOI: 10.1016/0010-2180(82)90089-x

✦ Synopsis

A dye laser has been used to excite fluorescence from OH, CN, NH, NO, CH, and C 2 in laboratory premixed flames at atmospheric pressure in connection with an investigation of the chemistry of the nitrogen compounds. OH concentrations were measured independently in a variety of flames by a method involving the reduction in the amount of fluorescence from trace amounts of sodium when HCI was present in the flame. This allowed relative quenching rates for H20, H 2, and CO to be determined as 1.0 : 0.32+0.10 : 1.3+0.2, and hence concentrations to be derived from unsaturated fluorescence in most rich flames.