Abstract
A study is presented of the emission spectra produced by nebulisation of organic liquids into a nitrogen-hydrogen diffusion flame burning in air, and into a laminar-flow pre-mixed air-hydrogen flame. Both flames exhibit low background emissions and that of the diffusion flame is particularly low even over the OH-band region. Carbon, hydrogen and oxygen-containing compounds exhibit intense bands for CH, CHO, C2 and OH species. Nitrogen-containing organic compounds additionally display NH, NO and CN bands; chlorine-containing compounds give CCl bands in the diffusion flame; sulphur compounds give CS and S2 bands; and phosphorus compounds give HPO and PO bands.
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