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1 PublicationInvestigation of matrix independent calibration of oxygen in glow discharge optical emission spectrometry
Hoffmann, V.; Gebel, B.; Heller, R.; Gemming, T.
Abstract
The performance of glow discharge optical emission spectrometry for matrix independent oxygen determination was
investigated using the spectral lines of atomic oxygen at 130 nm and 777 nm and standard conditions for dc discharge with a
4 mm anode (700 V, 20 mA). Using hot-pressed calibration samples of Cu-, Al- and Mg-powder mixed with their oxides, at
130 nm the dependence of the emission yield on these matrices was confirmed. However, at 777 nm oxygen has the same
emission yield in these matrices. In order to compare the emission yield of oxygen with the emission yield in iron a thick 43
μm FeO-layer was prepared and characterized by Rutherford backscattering spectrometry, X-ray diffraction and glow
discharge optical emission spectrometry. At 130 nm, the emission yield of oxygen in FeO is most similar to that in an Almatrix.
At 777 nm, the calibration revealed a higher emission yield of oxygen in FeO in comparison to the common emission
yield of oxygen in Cu-, Al- and Mg-matrices. © 2022 The Royal Society of Chemistry
Keywords: glow discharge; optical emission spectroscopy; material science
Involved research facilities
- Ion Beam Center DOI: 10.17815/jlsrf-3-159
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ROBIS: 36242 HZDR-primary research data are used by this (Id 36241) publication
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Journal of Analytical Atomic Spectrometry 32(2022)6, 1223-1228
DOI: 10.1039/D2JA00043A
Cited 2 times in Scopus
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