UnivTrevesV1, Main, Merge, bibRecord, 000B42

ESI SINGLE QUADRUPOLE MASS SPECTROMETRIC INVESTIGATION OF POLYHYDROXY ACIDS

Identifieur interne : 000B42 ( Main/Merge ); précédent : 000B41; suivant : 000B43

ESI SINGLE QUADRUPOLE MASS SPECTROMETRIC INVESTIGATION OF POLYHYDROXY ACIDS

Auteurs : Klaus Fischer [Allemagne] ; Susanne Höffler [Allemagne] ; Axel Meyer [Allemagne]

Source :

Analytical letters [ 0003-2719 ] ; 2011.

RBID : Pascal:11-0364028

Descripteurs français

Pascal (Inist)
- Spectrométrie masse, Ionisation chimique, Electrospray, Injection en écoulement, Activation par collision, Sélectivité, Identification, Cible, pH, Conversion, Libération, Carbone, Produit, Dissociation, Acide carboxylique, Sucre, Lactone, Dioxyde de carbone, Acide gluconique, Acide aldonique, Acide uronique.
Wicri :
- topic : Carbone, Sucre.

English descriptors

KwdEn :
- Aldonic acid, Carbon, Carbon dioxide, Carboxylic acid, Chemical ionization, Collisional activation, Conversion, Dissociation, Electrospray, Flow injection, Gluconic acid, Identification, Lactone, Mass spectrometry, Product, Release, Selectivity, Sugar, Target, Uronic acid, pH.

Abstract

ESI-MS spectra were recorded with a FIA-MS system under CID conditions for 19 polyhydroxy carboxylic acids to assess the analytical selectivity of single quadrupole MS and to evaluate its suitability for the qualitative identification of the target compounds. Suited ESI operation conditions were defined for several sugar acids and their lactones and the pH dependence of the respective acid-lactone conversion was investigated. Besides the common neutral mass losses of H₂O and CO₂ specific mass losses, presumably belonging to the release of small carbon chain units, were established for isocitric and gluconic acids. A product ion with mlz 75 was part of the MS spectra of all aldonic acids, potentially indicating this structural subgroup of sugar acids. The spectra of other sugar acids and of tartaric, isocitric and shikimic acids had a product ion with mlz 73 in common. The results reveal that the CID mass spectra of several hydroxy acids show characteristic product ion patterns suited for a selective analyte identification.

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Pascal:11-0364028

Le document en format XML

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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Aldonic acid</term>
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<term>Chemical ionization</term>
<term>Collisional activation</term>
<term>Conversion</term>
<term>Dissociation</term>
<term>Electrospray</term>
<term>Flow injection</term>
<term>Gluconic acid</term>
<term>Identification</term>
<term>Lactone</term>
<term>Mass spectrometry</term>
<term>Product</term>
<term>Release</term>
<term>Selectivity</term>
<term>Sugar</term>
<term>Target</term>
<term>Uronic acid</term>
<term>pH</term>
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<keywords scheme="Pascal" xml:lang="fr"><term>Spectrométrie masse</term>
<term>Ionisation chimique</term>
<term>Electrospray</term>
<term>Injection en écoulement</term>
<term>Activation par collision</term>
<term>Sélectivité</term>
<term>Identification</term>
<term>Cible</term>
<term>pH</term>
<term>Conversion</term>
<term>Libération</term>
<term>Carbone</term>
<term>Produit</term>
<term>Dissociation</term>
<term>Acide carboxylique</term>
<term>Sucre</term>
<term>Lactone</term>
<term>Dioxyde de carbone</term>
<term>Acide gluconique</term>
<term>Acide aldonique</term>
<term>Acide uronique</term>
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<keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Carbone</term>
<term>Sucre</term>
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<front><div type="abstract" xml:lang="en">ESI-MS spectra were recorded with a FIA-MS system under CID conditions for 19 polyhydroxy carboxylic acids to assess the analytical selectivity of single quadrupole MS and to evaluate its suitability for the qualitative identification of the target compounds. Suited ESI operation conditions were defined for several sugar acids and their lactones and the pH dependence of the respective acid-lactone conversion was investigated. Besides the common neutral mass losses of H<sub>2</sub>
O and CO<sub>2</sub>
 specific mass losses, presumably belonging to the release of small carbon chain units, were established for isocitric and gluconic acids. A product ion with mlz 75 was part of the MS spectra of all aldonic acids, potentially indicating this structural subgroup of sugar acids. The spectra of other sugar acids and of tartaric, isocitric and shikimic acids had a product ion with mlz 73 in common. The results reveal that the CID mass spectra of several hydroxy acids show characteristic product ion patterns suited for a selective analyte identification.</div>
</front>
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<name sortKey="Hoffler, Susanne" sort="Hoffler, Susanne" uniqKey="Hoffler S" first="Susanne" last="Höffler">Susanne Höffler</name>
<name sortKey="Meyer, Axel" sort="Meyer, Axel" uniqKey="Meyer A" first="Axel" last="Meyer">Axel Meyer</name>
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ESI SINGLE QUADRUPOLE MASS SPECTROMETRIC INVESTIGATION OF POLYHYDROXY ACIDS

ESI SINGLE QUADRUPOLE MASS SPECTROMETRIC INVESTIGATION OF POLYHYDROXY ACIDS

Source :

Descripteurs français

English descriptors

Abstract

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

Links to Exploration step

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri