Furnace atomization plasma excitation spectrometry: effects of sodium chloride and sodium nitrate on lead and silver emission

Abstract

The effect of alkali halide and nitrate salts on the emission intensity from Ag and Pb, excited using furnace atomization plasma excitation spectrometry, has been studied. Compared with the emission signal obtained when there is no interferent, the presence of either NaNO₃ or NaCl as a comcomitant in the sample causes an interference effect by decreasing the emission intensity over the power range 14–40 W.