C
Claire Elfakir
Researcher at University of Orléans
Publications - 103
Citations - 3707
Claire Elfakir is an academic researcher from University of Orléans. The author has contributed to research in topics: High-performance liquid chromatography & Mass spectrometry. The author has an hindex of 32, co-authored 102 publications receiving 3422 citations.
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Journal ArticleDOI
ESI-MS/MS analysis of underivatised amino acids: a new tool for the diagnosis of inherited disorders of amino acid metabolism. Fragmentation study of 79 molecules of biological interest in positive and negative ionisation mode
Monique Piraud,Christine Vianey-Saban,Konstantinos Petritis,Claire Elfakir,Jean-Paul Steghens,Aymeric Morla,Denis Bouchu +6 more
TL;DR: In this paper, the analysis of 79 molecules of biological interest in electrospray ionisation tandem mass spectrometry (ESI-MS/MS), in positive and negative ionisation mode, was performed.
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Porous graphitic carbon: A versatile stationary phase for liquid chromatography
TL;DR: Current knowledge on graphitic carbon stationary phases is described, based on over 400 fundamental studies and applications, that were invented 30 years ago and commercially available for 20 years.
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Ion-pairing reversed-phase liquid chromatography/electrospray ionization mass spectrometric analysis of 76 underivatized amino acids of biological interest: a new tool for the diagnosis of inherited disorders of amino acid metabolism.
Monique Piraud,Christine Vianey-Saban,Konstantinos Petritis,Claire Elfakir,Jean-Paul Steghens,Denis Bouchu +5 more
TL;DR: Reversed-phase liquid chromatography (RPLC) separation on different C18 columns using various perfluorinated carboxylic acids as ion-pairing agents has been found suitable for coupling with MS/MS, and for the separation of AA.
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Investigations on the chromatographic behaviour of zwitterionic stationary phases used in hydrophilic interaction chromatography.
Raluca-Ioana Chirita,Caroline West,Sandrine Zubrzycki,Adriana-Luminita Finaru,Claire Elfakir +4 more
TL;DR: A modified version of the solvation parameter model was designed: two additional molecular descriptors were introduced, to account for ionic interactions with anionic and cationic species, and rationalization of the interactions contributing to retention and separation in the HILIC systems considered.
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Antimicrobial, antioxidant and phytochemical investigations of sea buckthorn (Hippophaë rhamnoides L.) leaf, stem, root and seed
TL;DR: In this article, the antimicrobial and antioxidant activities of crude ethanolic extract from Hippophae rhamnoides L. (Elaeagnaceae) leaf, stem, root and seed, and their respective fractions, obtained by liquid-liquid extraction (LLE) using hexane (HF), ethyl acetate (EAF) and water (WF), were investigated.