Analytical Chemistry

(Chris Devlin) #1
Figure 8.8
Glow discharge lamp (with permission from Jobin–Yvon).

Applications


The GDL can be used for the analysis of trace, minor and major constituents in electrically conducting
samples, especially metallurgical specimens. Similar detection limits to arc/spark methods are observed
but with greater freedom from interferences and much improved precision (Figure 8.9).


Figure 8.9
Comparison of spectral characteristics of GDL
and spark emission signals (with permission
from Jobin–Yvon).
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