Journal
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
Volume 147, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.trac.2021.116511
Keywords
Pirkle-type CSPs; Whelk-O1 selector; Enantioselective chromatography; Normal-phase ultra -high performance; liquid chromatography; Ultra -high performance supercritical fluid; chromatography
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Funding
- grant Ateneo 2020 - Sapienza, Universita di Roma
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This review compares the applications of Whelk-O1 stationary phase in normal phase liquid chromatography and supercritical fluid chromatography. It describes the milestones and potential drawbacks of enantioselective chromatography in recent decades and highlights the need for improvements, especially in ultra-high supercritical fluid chromatography.
Since their discovery, the Pirkle-type chiral stationary phases, and in particular the Whelk-O1, have been used in a large number of applications and theoretical studies. Although they can be used in many elution modes, their main field of application is in normal phase liquid chromatography and more recently in supercritical fluid chromatography. In this review, we tried to compare the two techniques using the Whelk-O1 stationary phase as a trait d'union. The main milestones obtained in the last decades of research in enantioselective chromatography and possible lights and shadows of the two techniques have been described. There is still a long way to go to achieve the full potential in the field of enan-tioselective separations, and especially ultra-high supercritical fluid chromatography, given its great potential, is a technique still to be improved. (c) 2021 Elsevier B.V. All rights reserved.
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