NITROUS OXIDE-ACETYLENE FLAME IN EMISSION ANALYSIS .3. ALUMINUM GALLIUM INDIUM THALLIUM GERMANIUM AND TIN

Emission characteristics of these elements in the premixed nitrous oxide-acetylene flame were carefully studied. Detection limits of 0.005, 0.01, 0.002, 0.02, 0.5 and 0.5 μg ml were found for aluminum, gallium, indium, thallium, germanium and tin. These are about one order of magnitude better than those reported in atomic absorption for the first four elements and about the same for the last two. Chemical interference effects are very small in all cases studied and spectral interferences are readily corrected for. The flame was applied to determination of small amounts of aluminum in three rocks and three steels from the National Bureau of Standards. © 1969.