Results 181 to 190 of about 9,566 (219)
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Solanidine isolation from Solanum tuberosum by centrifugal partition chromatography
Journal of Separation Science, 2013The aim of this investigation was the preparative isolation of solanidine (aglycone of the two main potato glycoalkaloids: α‐chaconine and α‐solanine) from fresh Solanum tuberosum (cv. Pompadour) material by implementing a new preparation scheme using centrifugal partition chromatography (CPC).
Attoumbre, Jacques +2 more
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Separation of natural products by centrifugal partition chromatography
Journal of Chromatography A, 1988Abstract 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
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Journal of Liquid Chromatography, 1988
Abstract Centrifugal Partition Chromatography (CPC) uses a liquid as a stationary phase. This liquid is held in channels by a centrifugal field. The ability of CPC to purify a sample was tested using a mixture of 2,2 pchlorophenyl-1,1,1-trichlorethane (DDT) and the corresponding dichlorethane (DDD). It is shown that, in one run, up to 675 mg of DDT can
Alain Berthod, Daniel W. Armstrong
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Abstract Centrifugal Partition Chromatography (CPC) uses a liquid as a stationary phase. This liquid is held in channels by a centrifugal field. The ability of CPC to purify a sample was tested using a mixture of 2,2 pchlorophenyl-1,1,1-trichlorethane (DDT) and the corresponding dichlorethane (DDD). It is shown that, in one run, up to 675 mg of DDT can
Alain Berthod, Daniel W. Armstrong
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Rapid purification method for fumonisin B1 using centrifugal partition chromatography
Food Additives & Contaminants: Part A, 2013Fumonisin B1 (FB1) is a highly toxic mycotoxin produced by fungal strains belonging to the Fusarium genus, which can be found mainly in maize products, and is gaining interest in food safety. To produce large amounts of pure FB1, a novel purifying method was developed by using centrifugal partition chromatography, which is a prominent member of the ...
A, Szekeres +6 more
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Theory and Use of Centrifugal Partition Chromatography
Journal of Liquid Chromatography, 1988Abstract Centrifugal Partition Chromatography (CPC) is a variant of countercurrent chromatography (CCC). As in CCC, two immiscible liquids are used. The first liquid is the stationary phase, the second is the mobile phase. The liquid stationary phase is held in channels engraved in seveal polychlorotrifluoroethylene (PCTFE) plates. One hundred channels
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Separation of a binary mixture by sequential centrifugal partition chromatography
Journal of Chromatography A, 2012Sequential centrifugal partition chromatography (sCPC) is a novel continuous cyclic liquid-liquid chromatographic separation technology. Each cycle of the process comprises two steps, which differ by the liquid phase used as mobile phase (upper or lower phase) and its flow direction.
Elisabeth, Hopmann, Mirjana, Minceva
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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 +2 more
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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 +2 more
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2002
Countercurrent chromatography (CCC) and centrifugal partition chromatography (CPC), although powerful preparative techniques because of their high capacity, low cost of liquid stationary phases (solvent mixtures), and low solvent consumption, show rather poor efficiency.
Laureano Oliveros +3 more
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Countercurrent chromatography (CCC) and centrifugal partition chromatography (CPC), although powerful preparative techniques because of their high capacity, low cost of liquid stationary phases (solvent mixtures), and low solvent consumption, show rather poor efficiency.
Laureano Oliveros +3 more
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Journal of Liquid Chromatography, 1988
Abstract Octanol-water partition coefficients (Koct) are one of the accepted physico-chemical parameters for predicting the biological effects of organic chemicals. It is demonstrated that centrifugal partition chromatography (CPC) can be used to determine directly the Koct values from about 0.003 to 300.
Alain Berthod +2 more
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Abstract Octanol-water partition coefficients (Koct) are one of the accepted physico-chemical parameters for predicting the biological effects of organic chemicals. It is demonstrated that centrifugal partition chromatography (CPC) can be used to determine directly the Koct values from about 0.003 to 300.
Alain Berthod +2 more
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Journal of Liquid Chromatography, 1990
Abstract The range of determination of octanol-water partition coefficients by CPC has been extended by the dual-mode approach. In this mode, the analyte was pumped in the descending mode with water as the mobile phase for a predetermined time. The mode was then switched to ascending with octanol as the mobile phase.
S. J. Gluck, E. J. Martin
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Abstract The range of determination of octanol-water partition coefficients by CPC has been extended by the dual-mode approach. In this mode, the analyte was pumped in the descending mode with water as the mobile phase for a predetermined time. The mode was then switched to ascending with octanol as the mobile phase.
S. J. Gluck, E. J. Martin
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