H2N2V1, Main, Exploration, bibRecord, 002A23

An improved method for determining breath H2 as an indicator of carbohydrate malabsorption

Identifieur interne : 002A23 ( Main/Exploration ); précédent : 002A22; suivant : 002A24

An improved method for determining breath H2 as an indicator of carbohydrate malabsorption

Auteurs : Donna Payne-Bose [États-Unis] ; Asegash Tsegaye [États-Unis] ; R. D. Morrison [États-Unis] ; G. R. Waller [États-Unis]

Source :

Analytical Biochemistry [ 0003-2697 ] ; 1978.

RBID : ISTEX:289D2FE226067296BCB2763B02B8F319D9C04406

English descriptors

Teeft :
- Actual size, Arbitrary units, Area counts, Automatic sampling valve, Breath sample, Breath samples, Carbohydrate malabsorption, Collection bags, Dual columns, Electronic peak integrator, Glass gauze, Helium ionization detector, Hydrogen content, Oven temperature, Peak area, Peak areas, Pressure gauge, Pressurizing, Random order, Repeatable results, Retention time, Sample collection, Sample loop, Sample pressurizing, Sampling valve, Standard mixture, Standard mixtures, Successive samples, Thermal conductivity detector, Tidal, Tidal breath, Tidal volume, Tidal volume breath, Toggle valve, Tubing connector, Tygon tubing, Valve, Whole breath samples.

Abstract

Abstract: The hydrogen content of whole human breath (not concentrated or end-expiratory samples), useful as an index of carbohydrate malabsorption, can be determined accurately by gas chromatographic analysis using a thermal conductivity detector and, for the first time, and electronic peak integrator. Standard gas mixtures (H2Ar or preferably H2N2) give peak areas linearly related to hydrogen content. For repeatable results, it is necessary to pressurize samples in a 0.5-ml sample loop. Five minutes are required for the analysis of a sample with a printed report of the area of the H2 peak (arbitrary units) and concentration of H2 (parts per million). Standard samples can be stored in special impervious bags for up to 3 days without loss. Details of bag construction are given.

Url:

https://api.istex.fr/ark:/67375/6H6-N7WPP4P2-6/fulltext.pdf

DOI: 10.1016/0003-2697(78)90470-0

Affiliations:

Links toward previous steps (curation, corpus...)

to stream Istex, to step Corpus: 001047
to stream Istex, to step Curation: 001047
to stream Istex, to step Checkpoint: 001613
to stream Main, to step Merge: 002B80
to stream Main, to step Curation: 002A23

Le document en format XML

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<term>Breath samples</term>
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<term>Collection bags</term>
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<front><div type="abstract" xml:lang="en">Abstract: The hydrogen content of whole human breath (not concentrated or end-expiratory samples), useful as an index of carbohydrate malabsorption, can be determined accurately by gas chromatographic analysis using a thermal conductivity detector and, for the first time, and electronic peak integrator. Standard gas mixtures (H2Ar or preferably H2N2) give peak areas linearly related to hydrogen content. For repeatable results, it is necessary to pressurize samples in a 0.5-ml sample loop. Five minutes are required for the analysis of a sample with a printed report of the area of the H2 peak (arbitrary units) and concentration of H2 (parts per million). Standard samples can be stored in special impervious bags for up to 3 days without loss. Details of bag construction are given.</div>
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An improved method for determining breath H2 as an indicator of carbohydrate malabsorption

An improved method for determining breath H2 as an indicator of carbohydrate malabsorption

Source :

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri