A modified hollow cathode discharge lamp having three electrodes, which is operated with two individual power sources, has been developed for elemental analyses. The lamp enables analyte atoms to be directly introduced from a planar sample into the hollow cathode plasma. Detection limits and spectral interferences are reported for minor alloyed elements in various Fe-matrix alloys.
- Hollow cathode discharge lamp
- atomic emission spectrometry
- iron-based alloys
ASJC Scopus subject areas
- Analytical Chemistry