Abstract
A double-channel, hydride generation, non-dispersive atomic fluorescence spectrometer has been designed, and its structure and performance are reported in this paper. The spectral interference of bismuth reported in the literature was successfully overcome by using a bromide electrodeless discharge lamp instead of the conventional iodide lamp. The detection limits of arsenic, antimony, bismuth, and mercury in geochemical samples can reach 0.1 ppm, 0.01 ppm, 0.001 ppm and 0.002 ppm, respectively, in geochemical samples. The instrument and its method of application have been widely used with some success in China for geochemical sample analysis. Several examples of its application are reported in this paper.
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