ABSTRACT
Atomic emission spectroscopy is the study of the radiation emitted by excited atoms and monatomic ions. There is a positive aspect to the selective volatility of low-melting elements, in that spectral interferences are likely to be less at the beginning of a burn (low temperature) than at high temperatures when line-rich elements such as Fe start to vaporize. Generally, for trace amounts, the raies ultimes, or RU lines, must be present and identified in the emission spectra. Simultaneous systems contain either a polychromator or an echelle spectrometer and measure multiple wavelengths at the same time, as has been described for arc/spark instruments. The use of an IS does not correct for background interferences or spectral interferences. To measure only analyte fluorescence, the other spectral interferences must be eliminated or corrected for.
