preparative separation
Improving the performance of nadolol stereoisomers' preparative separation using Chiralpak IA by SMB chromatography
... pseudobinary preparative separation of nadolol stereoisomers is performed by simulated moving bed chromatography ...SMB separation and compare it with the previous results obtained using pure ...the ...
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Optimization of mobile phase composition for preparative separation of profens enantiomers by chiral liquid chromatography
... the preparative separation of ketoprofen and flurbiprofen enantiomers by chiral liquid ...enantiomers separation in a preparative and production-scale point of ...
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Influence of mobile phase composition on the preparative separation of profens by chiral liquid chromatography
... a preparative- scale separation method for this class of ...the separation of profen racemates. Considering the preparative separation of these class of enantiomers, the choice of the ...
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Preparative separation of nadolol racemates by fixed-bed liquid chromatography using C18 columns
... the separation of nadolol racemates using different achiral C18 columns, such as, XBridge, XBridge Shield RP18, XSelect CSH will be presented: Screening of mobile phase composition, solubility of nadolol racemates ...
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Preparative separation of ketoprofen enantiomers: choice of mobile phase composition and measurement of competitive adsorption isotherms
... the separation of ketoprofen enan- tiomers hardly can be achieved using pure methanol as mobile ...the preparative separation of ketoprofen ...
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Influence of mobile phase composition on the preparative separation of profens by chiral liquid chromatography
... Centra de Engenharia Biologica e Quimica, Institute Superior Tecnico, Lisboa, Port u ga l ;. Laboratoire de Catalyse en Chimie Organique, Poitiers, France[r] ...
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Fast preparative separation of flavones from capitula of Eriocaulon ligulatum (Vell.) L.B.Smith (Eriocaulaceae) by High-speed countercurrent chromatography (HSCCC)
... important step in performing HSCCC separations. We first selected a suitable two-phase solvent system for HSCCC using small amounts of the n-butanol fraction. The samples were dissolved into two immiscible liquid phases ...
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Quick preparative separation of natural naphthopyranones with antioxidant activity by high-speed counter-current chromatography
... the separation of the naphthopyranones 1Ð3 was chosen by TLC to estimate the distribution of a small amount of sample between the two immiscible phases (Con- way, 1990; Conway and Petroski, ...
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Optimization of mobile phase composition for preparative separation of profens enantiomers by chiral liquid chromatography
... the separation of ketoprofen enantiomers, best situation is achieved using pure ethanol as mobile ...of preparative liquid chromatographic ...the separation process since solubility, retention time, ...
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Optimization of the adsorption process for the analytical and preparative separation of nadolol stereoisomers
... This volume contains the short abstracts presented at the 12th International Chemical and Biological Engineering Conference - CHEMPOR 2014, held in Porta, Portugal, betweenC. September[r] ...
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Semi-preparative separation of α and β-amyrin by high performance liquid chromatographic.
... Neste trabalho descreve-se o uso da cromatograia líquida de alta eiciência (CLAE) no modo preparativo para a puriicação dos isôme- ros triterpenos α-amirina e β-amirina.. A separação da[r] ...
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Separation of nadolol racemates by high pH reversed-phase preparative chromatography
... the preparative separation of nadolol ...of preparative production of the RSR-nadolol pure stereoisomer was published in 2010 by Sung and ...by preparative HPLC using a JAIGEL-ODS-BP-L 25x500 ...
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Chiral separation by SMB chromatography
... F Preparative Enantiomer Separation Techniques including Chromatography (LC, GC, CCC) and Membrane Technology. DEVELOPMENT OF ENANTIOSELECTIVE LARGE SCALE PREPARATIVE SEPARATIONS[r] ...
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Separation and purification of microbial bioplastics
... The reuse of solvents was tested several times before being distilled, lowering the overall extraction process costs. Furthermore, solvent usage often leads to alterations of the natural morphology of PHA granules, which ...
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Ferrari’s separation from Fiat Chrysler Automobiles
... Finally, we have Ferrari’s separation. For the first step, Ferrari N.V., which at the time was a fully owned subsidiary of FCA, was used to facilitate many of the merger transactions noted above during the ...
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Separation of Proteins using Gel Electrophoresis
... ABSTRACT: Red scorpion ( Mesobuthus tamulus or Buthus tamulus ) venom samples were collected at different regions of India: western (Chiplun and Ahmednagar from Maharashtra State) a[r] ...
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Separation set distance for 2D Convolutional Codes
... We are now in position to introduce for the first time the novel definition of Max- imum Separation Set Distance Profile in the context of 2D convolutional codes. This notion is the analog of Maximum Distance ...
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Pervaporation: a non-chromatographic continuous separation technique.
... CONTINUOUS SEPARATION TECH- ...continuous separation techniques is pre- sented emphasizing the pervaporation ...Keywords: separation technique; preconcentration; ...
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CO2/CH4 separation with ionic liquids
... Analyzing the diagram it seems that the selectivity decreases with the ionic liquid molar volume and thus low molar volume ionic liquids are ideal for the separ[r] ...
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The momentum for network separation: A guide for regulators
... cut separation between the transmission infrastructure and the services which are offered through that infrastructure must entail a significant reduction in the economies of ...
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