1982 Volume 31 Issue 9 Pages E277-E284
To improve the sensitivity in the UHF plasma torch-atomic emission spectrometry (AES), and to reduce the matrix effects, the UHF power was increased from 0.5 to 1.0 kW. Optimum conditions of the sample introduction process were studied. For most of the elements, the relative net intensities of spectral lines increased with increasing UHF power, but the excitation temperature became lower. Since the gas temperature became higher with increasing UHF power, the matrix effects were slightly reduced. Detection limits for 13 elements were determined and compared with those of a conventional UHF plasma torch-AES.
