RF GD OES is well known for ultra fast elemental depth profile of thin and thick films. All elements can be measured including Hydrogen (H) which is important in many application fields - for corrosion studies, for PV, in metallurgy, for the development of hydrogen storage materials and for all polymeric coatings studies to name a few.
Isotopic separation usually requires MS spectrometry. However for Hydrogen, it is possible to separate it from its isotope Deuterium (D) in an optical spectrometer with adequate resolution: the 2 emission lines being at 121,534 nm (for D) and 121,567 nm (for H) – so separated by 30 picometers!
Deuterium profile is of great interest in fusion studies for plasma facing components, it is also of interest in corrosion studies (D being substituted to H in the corrosion medium.
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