Abstract

Zusammenfassung (Molecular absorption spectrometry with electrothermal volatilization in a graphite tube. Part 6. Determination of traces of chloride by molecular absorption of AlCl, GaCl and InCl molecules) The use of moleculer absorption spectrometry of thermally stable molecules such as AlCl, GaCl, InCl and TlCl, generated in a normal graphite tube, is assessed for determination of chloride. Optimal experimental conditions are discussed. The presence of Na + , Sr 2+ and Ba 2+ ions increases the signals. These influences and also those of others ions are discussed. The sensitivities (0.01 absorbance)for chloride are 1.5 ng for AlCl, 9 ng for GaCl and 3 ng for InCl.

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