Article (Scientific journals)
A gas chromatographic separation for the H and C stable isotope ratio determination of coal compounds
Antenucci, Diano; Bouquegneau, Jean-Marie; Brasseur, Alain et al.
1997In Analytical Chemistry, 69 (11), p. 2030-2034
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Abstract :
[en] A new, completely automated gas chromatography technique has been developed to separate the different gaseous compounds produced during underground coal gasification for their C-13/C-12 and D/H isotope ratio measurements, ?he technique was designed for separation and collection of Hz, CO, CO2, H2O, H2S, CH4, and heavier hydrocarbons. These gaseous compounds are perfectly separated by the gas-phase chromatograph and quantitatively sent to seven combustion and collection lines. H-2, CO, CH4, and heavier hydrocarbons are quantitatively oxidized to CO2 and/or H2O. The isotopic analyses are performed by the sealed-tube method, The zinc method is used for reduction of both water and H2S to hydrogen for D/H analysis, Including all preparation steps, the reproducibility of isotope abundance values, for a quantity higher than or equal to 0.1 mt of individual components in a mixture (5 mt of gases being initially injected in the gas chromatograph), is +/-0.1 parts per thousand for delta(13)C(PDB) and +/-6 parts per thousand for delta(13)C(PDB) and +/-6 parts per thousand for delta(SMOW).
Disciplines :
Materials science & engineering
Chemistry
Chemical engineering
Author, co-author :
Antenucci, Diano
Bouquegneau, Jean-Marie ;  Université de Liège - ULiège > Département des sciences et gestion de l'environnement > Océanologie
Brasseur, Alain;  Université de Liège - ULiège > Département de Chimie appliquée > Génie chimique - Chimie physique appliquée
Dauby, Patrick ;  Université de Liège - ULiège > Département des sciences et gestion de l'environnement > Systématique et diversité animale
Letolle, René
Jacquemin, C.
Pirard, Jean-Paul ;  Université de Liège - ULiège > Département de chimie appliquée > Génie chimique - Chimie physique appliquée
Language :
English
Title :
A gas chromatographic separation for the H and C stable isotope ratio determination of coal compounds
Publication date :
1997
Journal title :
Analytical Chemistry
ISSN :
0003-2700
eISSN :
1520-6882
Publisher :
American Chemical Society, Washington, United States - District of Columbia
Volume :
69
Issue :
11
Pages :
2030-2034
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 28 August 2009

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