Determination of trace elements in high purity alumina powder by helium enhanced direct current glow discharge mass spectrometry

Jung, Sehoon; Kim, Sunhye; Hinrichs, Joachim

doi:10.1016/j.sab.2016.05.003

Cited by 12 publications

(3 citation statements)

References 29 publications

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“…Actually, pressing the powdered samples into tablets was a feasible strategy for GDMS measurement. [23][24][25] With the high brittleness and grainy morphology of LaNi5, however, the grinding process might scuff the surface of the grinding tool and contaminate the powdered LaNi5 sample. For most optional mortars, the metallic or plastic mortars were not suitable due to their low hardness relative to that of LaNi5.…”

Section: Resultsmentioning

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: Resultsmentioning

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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“…A sophisticated methodology of sample preparation (with higher sensitivity and suitable reproducibility) for a non-conductive sample to make it conducting by mixing it with an appropriate conducting matrix is required, if dc-powered GD-MS sources are used. [20][21][22][23][24] Second, the elemental analysis of metal-bound oxygen materials is always a challenging task. It is well established that the traces of light gaseous elements, present either as constituents in the sample or occluded within the sample, can cause noticeable changes to the excitation/ionization processes particularly those occurring by the plasma gas.…”

Section: Analytical Challenges Of Mocl 2 O 2 Analysis In Solid (Akes...mentioning

confidence: 99%

Excitation and ionization processes of chlorine in molybdenum dichloride dioxideflakesusing the glow discharge mass spectrometry technique

Mushtaq¹

2022

J. Anal. At. Spectrom.

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“…A secondarycathode technique can be used for pin-shaped 7,8 or plate-shaped 9,10 solid samples. On the other hand, mixing with a high-purity conducting powder is always required for powdered samples, 11,12 although the mixing procedure may lead to some elemental contamination.…”

Section: Introductionmentioning

confidence: 99%

Determining Trace Rare-Earth Oxides In High-Purity Europium Oxide By Microsecond-Pulsed And Continuous Direct-Current Glow-Discharge Mass Spectrometry

Zhou¹

2021

At.Spectrosc.

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Establishing the purities of rare-earth oxides is an important objective as they are extensively used in a variety of applications. Herein, we reported the development of mixing and secondarycathode methods for the microsecond-pulsed and continuous direct-current glowdischarge mass spectrometric analyses of trace rare-earth-oxide contaminants present in europium oxide samples. Matrix effects were corrected for, results were calibrated using relative sensitivity factors derived from pure copper, and the accuracy of the method was validated using Eu2O3 certified reference materials, with relative deviations of less than 15% obtained for most analytes in both modes.

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Determination of trace elements in high purity alumina powder by helium enhanced direct current glow discharge mass spectrometry

Cited by 12 publications

References 29 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

Excitation and ionization processes of chlorine in molybdenum dichloride dioxideflakesusing the glow discharge mass spectrometry technique

Determining Trace Rare-Earth Oxides In High-Purity Europium Oxide By Microsecond-Pulsed And Continuous Direct-Current Glow-Discharge Mass Spectrometry

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