Innovative method for carbon dioxide determination in human postmortem cardiac gas samples using headspace-gas chromatography-mass spectrometry and stable labeled isotope as internal standard.

Détails

ID Serval
serval:BIB_0A5B4D1C3D6E
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Innovative method for carbon dioxide determination in human postmortem cardiac gas samples using headspace-gas chromatography-mass spectrometry and stable labeled isotope as internal standard.
Périodique
Analytica Chimica Acta
Auteur(s)
Varlet V., Smith F., de Froidmont S., Dominguez A., Rinaldi A., Augsburger M., Mangin P., Grabherr S.
ISSN
1873-4324 (Electronic)
ISSN-L
0003-2670
Statut éditorial
Publié
Date de publication
2013
Volume
784
Pages
42-46
Langue
anglais
Notes
Publication types: Journal Article Publication Status: ppublish
Résumé
A novel approach to measure carbon dioxide (CO2) in gaseous samples, based on a precise and accurate quantification by (13)CO2 internal standard generated in situ is presented. The main goal of this study was to provide an innovative headspace-gas chromatography-mass spectrometry (HS-GC-MS) method applicable in the routine determination of CO2. The main drawback of the GC methods discussed in the literature for CO2 measurement is the lack of a specific internal standard necessary to perform quantification. CO2 measurement is still quantified by external calibration without taking into account analytical problems which can often occur considering gaseous samples. To avoid the manipulation of a stable isotope-labeled gas, we have chosen to generate in situ an internal labeled standard gas ((13)CO2) on the basis of the stoichiometric formation of CO2 by the reaction of hydrochloric acid (HCl) with sodium hydrogen carbonate (NaH(13)CO3). This method allows a precise measurement of CO2 concentration and was validated on various human postmortem gas samples in order to study its efficiency.
Mots-clé
In situ stable labeled isotope generation, Carbon dioxide, Headspace gas extraction
Pubmed
Web of science
Création de la notice
26/07/2013 17:28
Dernière modification de la notice
29/05/2018 10:19
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