Article (Scientific journals)
Combination of Partial Least Squares regression and Design of Experiments to model the retention of pharmaceuticals in Supercritical Fluid Chromatography
Andri, Bertyl; Dispas, Amandine; Marini Djang'Eing'A, Roland et al.
2017In Journal of Chromatography. A
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Keywords :
Supercritical fluid chromatography; Chemometric approach; Chromatographic behaviour; LSER descriptors; retention prediction
Abstract :
[en] This work presents a first attempt to establish a model of the retention behaviour for pharmaceutical compounds in gradient mode SFC. For this purpose, multivariate statistics were applied on the basis of data gathered with the Design of Experiment (DoE) methodology. It permitted to build optimally the experiments needed, and served as a basis for providing relevant physicochemical interpretation of the effects observed. Data gathered over a broad experimental domain enabled the establishment of well-fit linear models of the retention of the individual compounds in presence of methanol as co-solvent. These models also allowed the appreciation of the impact of each experimental parameter and their factorial combinations. This approach was carried out with two organic modifiers (i.e. methanol and ethanol) and provided comparable results. Therefore, it demonstrates the feasibility to model retention in gradient mode SFC for individual compounds as a function of the experimental conditions. This approach also permitted to highlight the predominant effect of some parameters (e.g. gradient slope and pressure) on the retention of compounds. Because building of individual models of retention was possible, the next step considered the estab- lishment of a global model of the retention to predict the behaviour of given compounds on the basis of, on the one side, the physicochemical descriptors of the compounds (e.g. Linear Solvation Energy Relationship (LSER) descriptors) and, on the other side, of the experimental conditions. This global model was established by means of partial least squares regression for the selected compounds, in an experimental domain defined by the Design of Experiment (DoE) methodology. Assessment of the model’s predic- tive capabilities revealed satisfactory agreement between predicted and actual retention (i.e. R2 = 0.942, slope = 1.004) of the assessed compounds, which is unprecedented in the field.
Research center :
CIRM - Centre Interdisciplinaire de Recherche sur le Médicament - ULiège
Disciplines :
Pharmacy, pharmacology & toxicology
Chemistry
Author, co-author :
Andri, Bertyl ;  Université de Liège > Département de pharmacie > Chimie analytique
Dispas, Amandine  ;  Université de Liège > Département de pharmacie > Chimie analytique
Marini Djang'Eing'A, Roland ;  Université de Liège > Département de pharmacie > Chimie analytique
Hubert, Philippe  ;  Université de Liège > Département de pharmacie > Chimie analytique
Sassiat, Patrick;  ESPCI - Paris > CBI > LSABM - CNRS - UMR 8231
Al Bakain, Ramia;  The University of Jordan > Department of Chemistry > Faculty of Science
Thiebaut, didier;  ESPCI - Paris > CBI > LSABM - CNRS - UMR 8231
Vial, Jerome;  ESPCI - Paris > CBI > LSABM - CNRS - UMR 8231
Language :
English
Title :
Combination of Partial Least Squares regression and Design of Experiments to model the retention of pharmaceuticals in Supercritical Fluid Chromatography
Publication date :
2017
Journal title :
Journal of Chromatography. A
ISSN :
0021-9673
eISSN :
1873-3778
Publisher :
Elsevier Science, Amsterdam, Netherlands
Special issue title :
Selected paper from 31st International Symposium on Chromatography (ISC2016), 28 August - 1 September 2016, Cork, Ireland.
Peer reviewed :
Peer Reviewed verified by ORBi
Name of the research project :
First International In-SCrit n°1217860
Funders :
DGTRE - Région wallonne. Direction générale des Technologies, de la Recherche et de l'Énergie [BE]
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