Quantification of discharge gas to optimize discharge parameters for relative sensitivity factors (RSFs) determination by slow-flow glow discharge mass spectrometry (GDMS)

Paudel, Gagan; Sabatino, Marisa Di

doi:10.1039/d0ja00281j

Cited by 3 publications

(2 citation statements)

References 27 publications

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“…Several methods such as reference data, calculated values have been utilized to obtain RSF values. [17][18][19][20][21] Our group have developed the universal RSFs (u-RSFs) by averaging RSFs from up to seven types of matrix, and applied them to the measurement of vanadium metal. 22 It was challenging to quantify the impurity elements in LaNi5 by GDMS in lack of the matrix-matched standards.…”

Section: Rsf=mentioning

confidence: 99%

The Rapid Determination of Multiple Impurities in Ultra-pure LaNi5 Alloy by Glow Discharge Mass Spectrometry

Wei,

Qin

2023

At.Spectrosc.

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The chemical composition of LaNi5 needed to be measured rapidly and sensitively to control the hydrogen storage capability of the material. Glow discharge mass spectrometry (GDMS) was an excellent candidate for the measurement of LaNi5 due to its high sensitivity, simple preparation, and the capabilities of simultaneous analysis of multiple elements as well as direct analysis of solids. In practice, the application of GDMS to LaNi5 analysis was constrained by the difficulties in sample preparation arising from the morphology of LaNi5 and by the lack of the matrix-matched materials. Herein, an analytical method for the determination of 25 impurity elements in ultra-pure LaNi5 particles was established using GDMS. The zirconia mortar was selected as the tool for grinding the sample into powders by comparing the hardness and the introduced contaminants to those of other mortars. Under the optimized instrumental parameters, a set of relative sensitive factors (RSF) for calibration was established using nickel matrix based certified reference material, which was the analog of the matrix-matched material of LaNi5. This assumption was validated using corresponding standards with the relative error below 30% between the measured and the certified values. The previously reported universal RSFs (X. Wei, et al. Spectrochim. Acta, Part B, 2019, 154, 43-49.) were adopted for the absent elements in the available nickel standards. With this protocol, up to 25 impurity elements in LaNi5 were quantified, and the results were further validated by the other independent methods. Our work established a rapid and sensitive GDMS method for the quantitative measurement of 25 concerned impurities in LaNi5, improving the LaNi5 material analysis contents and efficiency. This method might also be applied to the sample preparation and the generation of RSFs of target element for the other complex analytes.

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Section: Rsf=mentioning

confidence: 99%

The Rapid Determination of Multiple Impurities in Ultra-pure LaNi5 Alloy by Glow Discharge Mass Spectrometry

Wei,

Qin

2023

At.Spectrosc.

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“…Paudel and Sabatino studied the impact of changes in current, voltage and argon flow on the determination of 16 elements in silicon pressed onto an indium sheet. 145 The variation in argon flow was quantified along with impurity elements to identify a range of discharge conditions where the deviation is minimum. Further, the discharge settings leading to an optimum crater in a flat silicon sample were also considered before finalizing the optimum discharge parameters for RSF determination.…”

Section: Inorganic Chemicals and Materialsmentioning

confidence: 99%

Atomic spectrometry update: review of advances in the analysis of metals, chemicals and materials

Carter

Clough

Fisher

et al. 2021

J. Anal. At. Spectrom.

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Silicon and indium as secondary cathodes for the analysis of solid alumina and sapphire by slow-flow direct-current glow discharge mass spectrometry

Busam

Paudel

Sabatino

2022

J. Anal. At. Spectrom.

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Quantification of discharge gas to optimize discharge parameters for relative sensitivity factors (RSFs) determination by slow-flow glow discharge mass spectrometry (GDMS)

Abstract: Accurate determination of impurities present in a matrix by glow discharge mass spectrometry (GDMS) requires the use of relative sensitivity factors (RSFs). In general, RSFs are obtained from reference materials...

Cited by 3 publications

References 27 publications

The Rapid Determination of Multiple Impurities in Ultra-pure LaNi5 Alloy by Glow Discharge Mass Spectrometry

The Rapid Determination of Multiple Impurities in Ultra-pure LaNi5 Alloy by Glow Discharge Mass Spectrometry

Atomic spectrometry update: review of advances in the analysis of metals, chemicals and materials

Silicon and indium as secondary cathodes for the analysis of solid alumina and sapphire by slow-flow direct-current glow discharge mass spectrometry

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