Results 151 to 160 of about 744,926 (184)

Separation of natural products by centrifugal partition chromatography

Journal of Chromatography A, 1988
Abstract Centrifugal liquid-liquid partition chromatography (CPC) with a Sanki CPC apparatus has been used to perform efficient separations of various classes of natural products. Applications involving flavonoids, saponins, coumarins, anthraquinones, phenolic acids and naphthoquinones are described.
A. Marston, C. Borel, K. Hostettmann
openaire   +1 more source

Effluent concentration profiles in centrifugal partition chromatography

AIChE Journal, 1997
AbstractCentrifugal partition chromatography (CPC) is a relatively new preparative chromatographic technique. To understand, predict, and optimize CPC separations a model is needed, describing the effluent concentration profile as a function of the phenomena that determine the separation efficiency (mass transfer, mixing, and partitioning).
M. J. van Buel, L. A. M. van der Wielen, K. Ch. A. M. Luyben   +2 more
openaire   +1 more source

Isolation and Purification of Lipids by Centrifugal Partition Chromatography

Journal of Liquid Chromatography, 1990
Abstract Methodologies for the separation of various lipid classes including free fatty acids (FA) and fatty acid ethyl esters (FAEE), monoglycerides (MG), diglycerides (DG), triglycerides (TG), phosphoglycerides (PG), and glycosphingolipids (GSL) by Centrifugal Partition Chromatography are presented.
J. G. Alvarez, J. Cazes, J. C. Touchstone, R. L. Grob   +3 more
openaire   +1 more source

Extraction and separation of pinosylvins by Centrifugal Partition Chromatography

Planta Medica, 2015
Pinosylvins are stilbenoid toxins available in the heartwood and knots of Pinaceae, protecting them from microbiological attacks [1]. Extraction of pinosylvins can be easily realized from chopped knots, a less expensive byproduct of wood production, by well-known extraction techniques using non-chlorinated solvents.
L Lorantfy, Z Kovács, D Rutterschmidt, Z Misek, G Rajsch   +4 more
openaire   +1 more source

VANCOMYCIN AS A CHIRAL SELECTOR IN CENTRIFUGAL PARTITION CHROMATOGRAPHY

Journal of Liquid Chromatography & Related Technologies, 2000
The use of vancomycin as a chiral selector was introduced by D. W. Armstrong. This macrocyclic antibiotic was used either free in solution for thin-layer chromatography (TLC) and capillary electrophoresis (CE) or covalently bonded to silica gel in the case of high performance liquid chromatography (HPLC).
Ph. Duret, A. Foucault, R. Margraff
openaire   +1 more source

Centrifugal Partition Chromatography. vi. Temperature Effects

Journal of Liquid Chromatography, 1988
Abstract Temperature changes induce numerous physico-chemical changes in liquids. Vapor pressure, density, refractive index, viscosity and surface tension are such temperature dependent parameters. The mutual solubilities of the stationary and mobile phase liquids are also temperature dependent.
Alain Berthod, Daniel W. Armstrong
openaire   +1 more source

New advances in countercurrent chromatography and centrifugal partition chromatography: focus on coupling strategy

Analytical and Bioanalytical Chemistry, 2013
Countercurrent chromatography (CCC) is an attractive separation method because the analytes are partitioned between two immiscible liquid phases avoiding problems related to solid stationary phase. In recent years, this technique has made great progress in separation power and detection potential.
Michel, Thomas, Destandau, Emilie, Elfakir, Claire   +2 more
openaire   +2 more sources

Centrifugal Partition Chromatography

1997
Applied ...
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Measurement of Partition Coefficient Using Centrifugal Partition Chromatography

1995
Measurement of partition coefficients in various solvent systems has been developed using flow-through centrifugal partition chromatography (CPC). The present paper details the experimental design, and shows that this method is able to measure compounds in a log P range of ca. -3.2 to 3.2 in a precise, accurate and rapid way.
Tsai, Ruey-Shiuan, Carrupt, Pierre-Alain, Testa, Bernard   +2 more
openaire   +2 more sources

Taxol purification with Centrifugal Partition Chromatography

Planta Medica, 2015
D Rutterschmidt, Z Kovács, L Lorantfy, Z Misek, G Rajsch   +4 more
openaire   +1 more source