An investigation of some experimental parameters in atomic fluorescence spectrophotometry |
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Authors: | R.M. Dagnall K.C. Thompson T.S. West |
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Affiliation: | Chemistry Department, Imperial College, London S.W. 7 Great Britain |
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Abstract: | Atomic fluorescence in flames is measured by an adaptation of a commercially available flame spectrophotometer. A study is reported of the effect of background radiation and source scattering on 3 flames, air-propane, air-hydrogen and air-acetylene, and of the effects of variation of fuel gas pressure, zone of measurement in the flame, analysing monochromator slit-width and wavelength of measurement. The air-propane flame appears to offer several advantages. The atomic fluorescence of 10 metals is described; those of Co, Fe and Mn have not been previously reported. Excitation of spectra is achieved by means of an a.c. xenon arc lamp or individual discharge lamps. |
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