Results 171 to 180 of about 36,278 (230)
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Molecule imprinting chiral stationary phase
Biomedical Chromatography, 1999Molecule imprinting polymers (MIPs) with high chiral selectivity for N(alpha)-protected amino acids were synthesized in polar solvent using acrylamide (AM) or combined functional monomer methacrylic acid (MAA) + vinyl pyridine (VP). Factors that influence the chiral selectivity of MIPs and mechanisms of the chiral recognition process were investigated.
Z, Meng +4 more
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Hexahelicene chiral stationary phase
Journal of Chromatography A, 1988Abstract Hexahelicen-7-ylacetic acid methyl ester was synthesized and resolved on a column of (+)-2-(2,4,5,7-tetranitro-9-fluoren ylideneamino-oxy)propionic acid on aminopropyl silica. Following hydrolysis, the (+)-hexahelicen-7-ylacetic acid was bonded by carbodiimide coupling to aminopropyl silica.
S.A. Matlin, V.E. Stacey, W.J. Lough
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Chromatography on chiral stationary phases
Journal of Materials Chemistry, 1997An overview is given of the development of the variety of chiral stationary phase materials that are available today for the direct separation of enantiomers by different chromatographic methods. Applications of these range from trace analytical determinations of enantiomeric composition in biological materials to large scale preparative isolation of ...
Stig Allenmark, Volker Schurig
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Chiral stationary phase designed for β-blockers
Journal of Chromatography A, 1991A chiral stationary phase (CSP) derived from an N-3,5-dinitrobenzoyl-alpha-amino phosphonate was prepared for the direct separation of the enantiomers of underivatized beta-blockers. Structure-chromatographic activity relationships for beta-blockers and closely related analogues are reported for this CSP and are found to be consistent with the model ...
W H, Pirkle, J A, Burke
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Research progress of bonded chiral stationary phases
Chinese Journal of Chromatography, 2017Chiral separation is important in biological medicine and other fields. High performance liquid chromatography (HPLC) is widely used in chiral separation and analysis for its economic, rapid and efficient characteristics. Chiral stationary phase (CSP) is the key to achieve chiral resolution in HPLC.
Jiao, Chen, Hao, Shi
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Solute-Stationary Phase Interaction in Chiral Chromatography.
Advances in chromatography, 2016.
Asnin, Leonid D. +2 more
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Assessing chiral self-recognition using chiral stationary phases
Tetrahedron, 2011Chiral stationary phases were synthesized and their ability to separate racemic precursors from which they were derived was assessed. Taken in conjunction with homochiral recognition previously observed in the solid state, the results of this study reveal that a geometrically controlling π–π interaction has a profound influence on molecular recognition.
Wonjae Lee +8 more
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Journal of Chromatographic Science, 2023
Abstract Chiral sulfoximines have significant roles in pharmaceutical industry and agricultural chemicals. Furthermore, chiral structurally related sulfoximines are used for their wide potential applications in some uncharted territory. However, chromatographic study on these compounds has not been systematically performed.
Qinqin Tang, Ping Zhao, Qingle Zeng
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Abstract Chiral sulfoximines have significant roles in pharmaceutical industry and agricultural chemicals. Furthermore, chiral structurally related sulfoximines are used for their wide potential applications in some uncharted territory. However, chromatographic study on these compounds has not been systematically performed.
Qinqin Tang, Ping Zhao, Qingle Zeng
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Chiral Separations by HPLC on Immobilized Polysaccharide Chiral Stationary Phases
2012Immobilized polysaccharide chiral stationary phases (CSPs) are a new development in chiral chromatography with increasing importance for the resolution of racemic compounds. These CSPs can be used with solvents traditionally applied for the classical coated polysaccharide CSPs as well as solvents that were "forbidden" for the coated phases such as ...
Imran, Ali +2 more
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Chiral stationary phases derived from tyrosine
Journal of Chromatography A, 1991Abstract Numerous chiral stationary phases (CSPs) have been developed in the last decade to provide an efficient and economic means for separating optical isomers. Among them, Pirkle-type CSPs have been designed according to a rational investigation of chiral recognition mechanisms.
Marcel Caude +2 more
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