Article (Scientific journals)
Liquid chromatography-tandem mass spectrometry for monitoring Vitamin D hydroxymetabolites in human aqueous humor
Fabregat Cabello, Neus; DARIMONT, Pierre; Huyghebaert, Loreen et al.
2019In Analytical Methods, 11 (41), p. 5282-5288
Peer Reviewed verified by ORBi
 

Files


Full Text
Analytical Methods (Hennuy).pdf
Publisher postprint (412.23 kB)
Request a copy

All documents in ORBi are protected by a user license.

Send to



Details



Keywords :
Liquids; Mass spectrometry; Metabolites; Vitamins; Average recovery; Cataract operations; Human aqueous humor; Limits of quantitations; Liquid chromatography tandem mass spectrometry (LC MS/MS); Liquid chromatography-tandem mass spectrometry; Sample preparation; Liquid chromatography
Abstract :
[en] A stable isotope dilution liquid chromatography tandem mass spectrometry (LC-MS/MS) method was developed and validated for the determination of 24,25-dihydroxyvitamin D3 (24,25(OH)2D3) and 25-hydroxyvitamin D3/D2 (25(OH)D3/D2) in human aqueous humor samples from the Eye-D study. Optimum sample preparation is based on simple liquid-liquid extraction (LLE) followed by derivatization with an Amplifex reagent prior to LC-MS/MS in order to enhance analyte sensitivity. The average recoveries for 24,25(OH)2D3 (0.02, 0.05, 0.4 μg L-1), 25(OH)D3 (0.2, 0.5,3.75 μg L-1) and 25(OH)D2 (0.15, 0.4, 3 μg L-1) ranged from 92 to 112 with a coefficient of variance (CV) lower than 15%. The limits of quantitation (LOQs) were from 0.02 μg L-1 (24,25(OH)2D3) to 0.2 μg L-1 (25(OH)D3) using a sample volume of 50 μL. We demonstrated that the present method provides adequate sensitivity, selectivity, accuracy, and robustness to screen for vitamin D metabolites in aqueous humor samples by analyzing five samples which were withdrawn during cataract operation. © 2019 The Royal Society of Chemistry.
Disciplines :
Laboratory medicine & medical technology
Author, co-author :
Fabregat Cabello, Neus ;  Department of Clinical Chemistry, University of Liège, CHU Sart-Tilman, Liège, Belgium, Hematology and Hemotherapy Group, Health Research Institute Hospital la Fe (IIS la Fe), Valencia, Spain
DARIMONT, Pierre ;  Centre Hospitalier Universitaire de Liège - CHU > Département de pharmacie hospitalière > Service administratif, dispositifs médicaux et stérilisation
Huyghebaert, Loreen ;  Centre Hospitalier Universitaire de Liège - CHU > Unilab > Laboratoire techniques séparatives et stress oxydant
Reynier, Pascal;  Department of Biochemistry and Genetics, CHU d'Angers, Angers, France
Annweiler, Cédric;  Department of Geriatric Medicine, Angers University Hospital, Research Center on Autonomy and Longevity, University Memory Clinic of Angers, UPRES EA 4638, University of Angers, Angers, France, Robarts Research Institute, Department of Medical Biophysics, Schulich School of Medicine and Dentistry, University of Western Ontario, London, ON, Canada
Milea, Dan;  Department of Ophthalmology, Angers University Hospital, Angers, France, Singapore Eye Research Institute, Singapore National Eye Centre, Duke-NUS, Neuroscience and Behavioral Diseases, Singapore
Le Goff, Caroline  ;  Université de Liège - ULiège > Département des sciences de la santé publique > Département des sciences de la santé publique
Cavalier, Etienne  ;  Université de Liège - ULiège > Département de pharmacie > Chimie médicale
Language :
English
Title :
Liquid chromatography-tandem mass spectrometry for monitoring Vitamin D hydroxymetabolites in human aqueous humor
Publication date :
2019
Journal title :
Analytical Methods
ISSN :
1759-9660
eISSN :
1759-9679
Publisher :
Royal Society of Chemistry
Volume :
11
Issue :
41
Pages :
5282-5288
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
UA - Université d'Angers [FR]
Available on ORBi :
since 09 April 2020

Statistics


Number of views
68 (9 by ULiège)
Number of downloads
4 (4 by ULiège)

Scopus citations®
 
5
Scopus citations®
without self-citations
5
OpenCitations
 
3

Bibliography


Similar publications



Contact ORBi