Article (Scientific journals)
Selectivity evaluation of phenyl based stationary phases for the analysis of amino acid diastereomers by liquid chromatography coupled with mass spectrometry
Moldovan, R.-C.; Bodoki, E.; Servais, Anne-Catherine et al.
2019In Journal of Chromatography. A
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Keywords :
Amino acids; Biphenyl; Chiral separations; Derivatization; Diphenyl; FLEC; Chirality; High performance liquid chromatography; Isomers; Mass spectrometry; Organic solvents; Separation; Derivatizations; Ascorbic acid
Abstract :
[en] D-amino acids (AA) analysis is becoming more and more relevant for metabolomics, therefore new analytical tools need to be developed. A common approach to achieve AA enantioseparation is chiral derivatization. Among the chiral derivatization reagents, (+) or (-)-1-(9-fluorenyl) ethyl chloroformate ((+) or (-)-FLEC) has proved to be one of the most versatile. Suitable chiral selectivity for FLEC derivatives of amino acids could be obtained in reversed-phase HPLC using nonpolar stationary phases (C4, C8 and C18) and tetrahydrofuran (THF) based mobile phases. This study is meant to provide alternatives to the use of THF as organic modifier by evaluating the selectivity obtained on two phenyl based stationary phases for 19 FLEC-DL-AA pairs of diastereomers using UHPLC-MS. Several mobile phases consisting of ammonium acetate and different common organic solvents (acetonitrile (ACN), methanol (MeOH), 2-propanol (IPA)) were tested using gradient elution. Experimental design was employed for the optimization of the separation conditions. In the optimized conditions, complete chiral separation can be achieved for 18 out of 19 FLEC-DL-AAs in less than 30 min. © 2019 Elsevier B.V.
Research Center/Unit :
CIRM - Centre Interdisciplinaire de Recherche sur le Médicament - ULiège
Disciplines :
Pharmacy, pharmacology & toxicology
Author, co-author :
Moldovan, R.-C.;  Laboratory for the Analysis of Medicines, Department of Pharmacy, Faculty of Medicine, CIRM, University of Liege, Avenue Hippocrate 15, B36, +3, Tower 4, Liege, 4000, Belgium, Department of Analytical Chemistry and Instrumental Analysis, Faculty of Pharmacy, “Iuliu Haţieganu” University of Medicine and Pharmacy Cluj-Napoca, 4 Louis Pasteur street, Cluj-Napoca, 400349, Romania
Bodoki, E.;  Department of Analytical Chemistry and Instrumental Analysis, Faculty of Pharmacy, “Iuliu Haţieganu” University of Medicine and Pharmacy Cluj-Napoca, 4 Louis Pasteur street, Cluj-Napoca, 400349, Romania
Servais, Anne-Catherine  ;  Université de Liège - ULiège > Département de pharmacie > Analyse des médicaments
Crommen, Jacques ;  Université de Liège - ULiège > Département de pharmacie > Département de pharmacie
Oprean, R.;  Department of Analytical Chemistry and Instrumental Analysis, Faculty of Pharmacy, “Iuliu Haţieganu” University of Medicine and Pharmacy Cluj-Napoca, 4 Louis Pasteur street, Cluj-Napoca, 400349, Romania
Fillet, Marianne  ;  Université de Liège - ULiège > Département de pharmacie > Analyse des médicaments
Language :
English
Title :
Selectivity evaluation of phenyl based stationary phases for the analysis of amino acid diastereomers by liquid chromatography coupled with mass spectrometry
Publication date :
2019
Journal title :
Journal of Chromatography. A
ISSN :
0021-9673
eISSN :
1873-3778
Publisher :
Elsevier B.V.
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
Fonds Léon Fredericq
Available on ORBi :
since 07 February 2019

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