Dihydrogen carrier gases in gas-solid chromatography. Study of hydrogen weight and nuclear spin isomer adsorption

Parbuzin, V. S.; Guliants, Vadim V.

doi:10.1007/bf02319708

Cited by 3 publications

(3 citation statements)

References 6 publications

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“…Parbuzin and Guliants 27 proposed a version of gas ± solid chromatography using adsorbable carrier gases (hydrogen deuteride and deuterium) as well as protium for the separation of a five-component mixture (hydrogen deuteride and the o-and p-isomers of hydrogen and deuterium) on a column with the NaA molecular sieve at a temperature in the range between 7321 and 7161 8C. The employment of the traditional version of gas ± solid chromatography using inert carrier gases for the physicochemical investigation of the adsorption of hydrogen isotopes and isomers is restricted by the `zero' degree of surface coverage of the adsorbent and by the temperature (7173 8C).…”

Section: Gas ± Solid Chromatography On Packed Columns 1 Gases As the ...mentioning

confidence: 99%

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The influence of the carrier gas on the retention parameters and the height equivalent to the theoretical plate in gas–solid chromatography

Berezkin¹,

Malyukova²

1998

Russ. Chem. Rev.

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Section: Gas ± Solid Chromatography On Packed Columns 1 Gases As the ...mentioning

confidence: 99%

“…5). 27 2. The use of pure vapours of polar compounds or their mixtures in an inert carrier gas as the mobile phase for the dynamic modification of adsorbents…”

Section: Gas ± Solid Chromatography On Packed Columns 1 Gases As the ...mentioning

confidence: 99%

The influence of the carrier gas on the retention parameters and the height equivalent to the theoretical plate in gas–solid chromatography

Berezkin¹,

Malyukova²

1998

Russ. Chem. Rev.

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“…The analysis of the gas mixtures at various points in the system is of great importance for proper functioning of tritium extraction system (TES). Various methods for the separation of hydrogen isotopes have been reported . Methods like laser Raman spectroscopy, GC with thermal conductivity detection and ion chamber have been considered for hydrogen isotopes analyses in fuel cycles.…”

Section: Introductionmentioning

confidence: 99%

Analysis of trace levels of impurities and hydrogen isotopes in helium purge gas using gas chromatography for tritium extraction system of an Indian lead lithium ceramic breeder test blanket module

Devi

Sircar

Yadav

et al. 2018

J of Separation Science

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In the fusion fuel cycle, the accurate analysis and understanding of the chemical composition of any gas mixture is of great importance for the efficient design of a tritium extraction and purification system or any tritium handling system. Methods like laser Raman spectroscopy and gas chromatography with thermal conductivity detector have been considered for hydrogen isotopes analyses in fuel cycles. Gas chromatography with a cryogenic separation column has been used for the analysis of hydrogen isotopes gas mixtures in general due to its high reliability and ease of operation. Hydrogen isotopes gas mixture analysis with cryogenic columns has been reported earlier using different column materials for percentage level composition. In the present work, trace levels of hydrogen isotopes (∼100 ppm of H and D ) have been analyzed with a Zeolite 5A and a modified γ-Al O column. Impurities in He gas (∼10 ppm of H , O , and N ) have been analyzed using a Zeolite 13-X column. Gas chromatography with discharge ionization detection has been utilized for this purpose. The results of these experiments suggest that the columns developed were able to separate ppm levels of the desired components with a small response time (<6 min) and good resolution in both cases.

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Detection and analysis for hydrogen isotopes and spin isomers by low-pressure chemical ionization mass spectrometry

Mack¹,

Liu²,

Luo³

et al. 1994

Anal. Chem.

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An indirect method for the mass spectrometric detection of hydrogen isotopes is described. The method involves the detection of protonated reagent gas ions rather than the direct detection of •Hi'1" and 12Hi+ at masses that are below the scan limits of most quadrupole GC/MS systems. Several reagent gases were investigated, viz., helium, neon, argon, and nitrogen.Argon was selected as the reagent gas because (i) there are no isotopes heavier than the most common, ^Ar, to interfere with the detection of the protonated species, (ii) the stability of HAr"1" is comparable to that of the protonated ions of other reagent gases, and (iii) argon is inexpensive and readily available. The mass-selective detection system permits the analysis of mixtures of hydrogen isotopes in the form of •HAr'*' and 2HAr+ without prior separation. The protium and deuterium spin isomers can be separated by gas/solid chromatography at 77 K. The indirect detection system allows the

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Dihydrogen carrier gases in gas-solid chromatography. Study of hydrogen weight and nuclear spin isomer adsorption

Cited by 3 publications

References 6 publications

The influence of the carrier gas on the retention parameters and the height equivalent to the theoretical plate in gas–solid chromatography

The influence of the carrier gas on the retention parameters and the height equivalent to the theoretical plate in gas–solid chromatography

Analysis of trace levels of impurities and hydrogen isotopes in helium purge gas using gas chromatography for tritium extraction system of an Indian lead lithium ceramic breeder test blanket module

Detection and analysis for hydrogen isotopes and spin isomers by low-pressure chemical ionization mass spectrometry

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