Influence of hydrogen on the analytical figures of merit of glow discharge optical emission spectroscopy—friend or foe?

Hodoroabă, Vasile-Dan; Steers, Edward B. M.; Hoffmann, Volker; Unger, Wolfgang; Paatsch, W.; Wetzig, K.

doi:10.1039/b301326j

Cited by 36 publications

(35 citation statements)

References 15 publications

(29 reference statements)

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“…Although no quantitative information was obtained, it is clear that the hydrogenated sample #1 has higher H and O contents than the a-C sample. However, the high H signal detected in the substrate of sample #1 could be related to a background increase due to changes in the emission lines because of the hydrogen present in the plasma [4]. After subtracting this background, the hydrogen signal remains significantly higher (~ 2 times) in the a-C:H sample.…”

Section: Discussionmentioning

confidence: 88%

Biocompatible Silver-containing a-C:H and a-C coatings: A Comparative Study

et al. 2006

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Hydrogenated diamond-like-carbon (a-C:H) and hydrogen-free amorphous carbon (a-C) coatings are known to be biocompatible and have good chemical inertness. For this reason, both of these materials are strong candidates to be used as a matrix that embeds metallic elements with antimicrobial effect. In this comparative study, we have incorporated silver into diamond-like carbon (DLC) coatings by plasma based ion implantation and deposition (PBII&D) using methane (CH 4 ) plasma and simultaneously depositing Ag from a pulsed cathodic arc source. In addition, we have grown amorphous carbon -silver composite coatings using a dualcathode pulsed filtered cathodic-arc (FCA) source. The silver atomic content of the deposited samples was analyzed using glow discharge optical spectroscopy (GDOES). In both cases, the arc pulse frequency of the silver cathode was adjusted in order to obtain samples with approximately 5 at.% of Ag. Surface hardness of the deposited films was analyzed using the nanoindentation technique. Cell viability for both a-C:H/Ag and a-C:/Ag samples deposited on 24-well tissue culture plates has been evaluated.

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Section: Discussionmentioning

confidence: 88%

Biocompatible Silver-containing a-C:H and a-C coatings: A Comparative Study

et al. 2006

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“…For rf-GD the effect of binary mixtures of argon with helium [62,63,64] or with molecular gases (hydrogen, oxygen, and nitrogen) has been investigated both for conducting samples and for insulators [53,65,66] in attempts to improve analyte emission intensities and yields, sample sputtering rates, crater shapes, in-depth resolution of thin films, etc.…”

Section: Mixed Gases Rf-gdmentioning

confidence: 99%

Radiofrequency glow-discharge devices for direct solid analysis

Pisonero

Costa

Pereiro

et al. 2004

Analytical and Bioanalytical Chemistry

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The enormous potential of radiofrequency glow discharges (rf-GD) as photon, atom, or ion sources, coupled to spectrometric techniques, for rapid direct analysis of almost any conductor, semiconductor, or insulating material with good in-depth resolution has been demonstrated world-wide. This outstanding performance has prompted a great effort to develop and characterise rf-GD for direct materials analysis in recent years. The state of the art of rf-GD coupled to atomic absorption spectrometry, optical emission spectrometry, and mass spectrometry for direct solid analysis is reviewed here. A description of the principles of operation of the rf-GD and attempts to model these discharges are also given. Rf-GD instrumentation, both developed at research laboratories and commercially available, is described. Several practical examples are given demonstrating the capabilities of these techniques for bulk and depth-profile analysis. Finally, the research gaps to be filled for full implementation of rf-GD spectrometric techniques in industry and research centres alike for materials science studies and technical development are discussed.

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“…Clearly the values obtained for a thin layer might be incorrect. Hodoroaba [12][13][14][15] carried out a detailed study of the effect of hydrogen on the intensity of copper lines, using controlled additions of hydrogen in the range 0-0.6 % H2 v/v. A large number of Cu I, Cu II, Ar I and Ar II lines were selected using a monochromator, and the relation between line intensity and hydrogen concentration measured for each line.…”

Section: The Effects Of Molecular Gases -Previous Work In the Fieldmentioning

confidence: 99%

The effects of traces of molecular gases (H₂, N₂& O₂) in glow discharges in noble gases

Steers

Šmı́d

Hoffmann

et al. 2008

J. Phys.: Conf. Ser.

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Influence of hydrogen on the analytical figures of merit of glow discharge optical emission spectroscopy—friend or foe?

Cited by 36 publications

References 15 publications

Biocompatible Silver-containing a-C:H and a-C coatings: A Comparative Study

Biocompatible Silver-containing a-C:H and a-C coatings: A Comparative Study

Radiofrequency glow-discharge devices for direct solid analysis

The effects of traces of molecular gases (H₂, N₂& O₂) in glow discharges in noble gases

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Influence of hydrogen on the analytical figures of merit of glow discharge optical emission spectroscopy—friend or foe?

Cited by 36 publications

References 15 publications

Biocompatible Silver-containing a-C:H and a-C coatings: A Comparative Study

Biocompatible Silver-containing a-C:H and a-C coatings: A Comparative Study

Radiofrequency glow-discharge devices for direct solid analysis

The effects of traces of molecular gases (H2, N2& O2) in glow discharges in noble gases

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Product

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The effects of traces of molecular gases (H₂, N₂& O₂) in glow discharges in noble gases