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Quantitative structure–retention relationships for ionic and non‐ionic compounds in biopartitioning micellar chromatography
Author(s) -
EscuderGilabert L.,
Sagrado S.,
VillanuevaCamañas R. M.,
MedinaHernández M. J.
Publication year - 2005
Publication title -
biomedical chromatography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 65
eISSN - 1099-0801
pISSN - 0269-3879
DOI - 10.1002/bmc.432
Subject(s) - chemistry , chromatography , ionic bonding , micellar liquid chromatography , cationic polymerization , retention time , kovats retention index , ionic strength , micelle , gas chromatography , organic chemistry , aqueous solution , ion
Quantitative structure–retention relationships, QSRRs, represent a powerful tool in chromatography. The objectives of QSRR studies are to predict the chromatographic retention behaviour of solutes based on their structural properties, to elucidate retention mechanisms, to optimize the separation of complex mixtures or to prepare experimental designs. In this paper, using the retention factors of 151 structurally unrelated solutes that cover a wide range of hydrophobicity, molecular size, hydrogen bonding properties and ionization degrees obtained in biopartitioning micellar chromatography (BMC) at different Brij35 micellar concentrations, several multivariate QSRR models are tested. It is demonstrated that the chromatographic retention of any molecule in BMC, independently of its family, can be adequately described by its hydrophobicity (expressed as log P ) and its anionic and cationic total molar charge (expressed as α A and α B ). Copyright © 2004 John Wiley & Sons, Ltd.