Direct isotope analysis of Chernobyl microparticles using time-of-flight mass spectrometry with pulsed glow discharge

Ганеев, А. А.; Gubal, Anna; Korotetski, Boris; Bogdanova, O. G.; Burakov, Boris E.; Titova, A. D.; Solovyev, Nikolay; Ivanenko, N. B.; Drobyshev, Evgenii; Iakovleva, Evgenia; Sillanpää, Mika

doi:10.1016/j.microc.2017.02.015

Cited by 18 publications

(4 citation statements)

References 33 publications

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“…Several sample preparation procedures were applied in the current study: direct measurements with no sample preparation, powdering and pressing in Al foil as described previously, 42,51 and covering with silver conductive paint; more details can be found elsewhere 24,45 …”

Section: Methodsmentioning

confidence: 99%

“…Glow discharge mass spectrometry (GDMS) is a promising technique for analyzing a variety of solids 33–35 . GDMS allows for the effective quantification of admixture elements in conducting materials and dielectrics 33,34,36,37 and it is also capable of elemental and isotopic analysis of minerals, 38–40 powders, 41 and microparticles, 42 and layer‐by‐layer analysis of thin films and coatings 43,44 . The main benefits of the GDMS‐based methods are accuracy, scanning speed, and narrow sensitivity drifts between different elements, significantly simplifying the calibration procedure 33 .…”

Section: Introductionmentioning

confidence: 99%

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A study of matrix and admixture elements in fluorine‐rich ionic conductors by pulsed glow discharge mass spectrometry

Chuchina

Gubal

Lyalkin

et al. 2020

Rapid Comm Mass Spectrometry

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Rationale: Dopants in ionic conductors play a crucial role in achieving the required electrochemical properties. A slight variation in their concentration considerably affects the conductivity of crystals and their applicability as ionic conductors and laser materials. To ensure the growth of high-quality fluoride crystals, adequate approaches for the quantification of matrix and admixture/dopant components are required. Methods: A panel of SrF 2 -and GdF 3 -doped LaF 3 single crystals was investigated.The electrical conductivity of the crystals was measured using impedance spectroscopy in the frequency range 100 Hz-1 MHz to control for crystal quality.Pulsed glow discharge mass spectrometry (GDMS) was used to simultaneously quantify fluorine, strontium, lanthanum, and gadolinium in the crystals. X-ray fluorescence, scanning electron microscopy-energy dispersive X-ray spectroscopy, and arc optical emission spectrometry were used for validation.Results: Quasiperiodic intensity drifts under sputtering of the ionic conductors were observed and attributed to F − redistribution on the sample surface, affecting surface conductivity and sputtering rate. Several sample preparation protocols were tested to address that effect. Full coating of the sample with a layer of silver several micrometers thick provided stable and effective sputtering. The parameters for the GDMS determination of F, Sr, La, and Gd were optimized. The elements' distribution was studied in different parts of the crystals. Conclusions:An analytical approach to the direct multi-element analysis of fluoridecontaining ionic conductors using pulsed GDMS with La 1−x−y Sr x Gd y F 3−x as an example was designed and tested. Instability effects of ionic conductivity were explained and coped with, providing effective and stable sputtering.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A study of matrix and admixture elements in fluorine‐rich ionic conductors by pulsed glow discharge mass spectrometry

Chuchina

Gubal

Lyalkin

et al. 2020

Rapid Comm Mass Spectrometry

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“…The instrument and its analytical features were described previously. [8][9][10][11] The discharge cell included a copper hollow cathode and a sampler cone (anode). In the current study, the cathode of 6 mm inner diameter and 3.5 mm depth produced from high purity copper (99.999%) was used.…”

Section: Instrumentationmentioning

confidence: 99%

New Possibilities for the Determination of Volatile Organic Compounds by Their Molecular Ions in Air Using µs-Pulsed GD TOFMS

Gubal¹

2021

At.Spectrosc.

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A recent trend in glow discharge analysis, previously considered as a 'purely inorganic' technique, is related to the effective ionisation of volatile organic compounds (VOCs). This approach was demonstrated to be capable of analysing VOCs in both model gas mixtures and ambient air. In the current study, the possibility of the direct determination of VOCs of different classes of organic compounds (including toluene, p-xylene, chlorobenzene and 1,2,4-trimethylbenzene) in ambient air using microsecond pulsed glow discharge time-of-flight mass spectrometry (µs-Pulsed GD TOFMS) with copper hollow cathode was demonstrated. The ionisation processes with the formation of molecular ions M + , which can be used for quantification, were discussed. The fragmentation of detected molecular ions of VOCs was found to be quite low, which benefits both qualitative and quantitative determination. The ease of identification and relative simplicity of the mass spectrum is promising for the analysis of VOC mixtures. One of the possible applications of the designed method is the direct determination of VOCs in human exhaled breath for the diagnosis of lung diseases, including lung cancer. However, revealing its potential applicability for this purpose requires further research.

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“…Other MS developments in the field of nuclear safeguarding included a PTR-MS method 44 for the determination of gas-phase CH 3 I and the isotopic analysis of U-containing particles by either GD-TOF-MS 45 or LA-TOF-MS 46 .…”

Section: Other Mass Spectrometry Techniques Secondary Ion Mass Spectmentioning

confidence: 99%

Atomic Spectrometry Update – a review of advances in environmental analysis

Bacon

Butler

Cairns

et al. 2019

J. Anal. At. Spectrom.

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Direct isotope analysis of Chernobyl microparticles using time-of-flight mass spectrometry with pulsed glow discharge

Cited by 18 publications

References 33 publications

A study of matrix and admixture elements in fluorine‐rich ionic conductors by pulsed glow discharge mass spectrometry

A study of matrix and admixture elements in fluorine‐rich ionic conductors by pulsed glow discharge mass spectrometry

New Possibilities for the Determination of Volatile Organic Compounds by Their Molecular Ions in Air Using µs-Pulsed GD TOFMS

Atomic Spectrometry Update – a review of advances in environmental analysis

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