[PDF] Top 20 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] ... See full document

... while the anti-inflammatory effect and gastric toxicity is associated mainly with the S-enantiomers (Wechter et ...than the S-enantiomers or the racemic form (Geisslinger and Schaible, ... See full document

... examples of profens, the actual most relevant subclass of the Non-Steroidal Anti-Inflammatory Drugs ...relieve of pain and in the treatment of several forms ... See full document

... stress the advantage of using an intermediate step based on achiral reversed-phase liquid chromatography to perform the separation of the two ... See full document

... since the pharmaceutical industry realized the need to produce chiral drugs with reduced severe ...issue, the international agencies for drug safety become a real driving force, pushing more ... See full document

... to the challenges facing preparative chromatography by providing liquid-liquid instruments of high sample mass capacity, tuneable selectivity, and ease of ... See full document

... 12, the mobile phase comprising 10 mM potassium phosphate buffer solution afforded a higher number of baseline enantioseparations, compared to the ...at the pH range of ... See full document

... different mobile phase mixtures and compositions were identified as promising solvents for the (1+2+3)/4 pseudo-binary preparative ...all of the possible solvents, a set ... See full document

... from the ones obtained for the separation of the ketoprofen ...enantiomers. The dimension of the separation regions progressively decrease with the ... See full document

... amounts of the n-butanol fraction. The samples were dissolved into two immiscible liquid phases consisting of organic solvents and water (Conway et ...analyzed by TLC in order to ... See full document

... To the best of our knowledge, no study to date investigated and compared the influence of MSC cultured on different substrates over the peripheral blood T cells ...effects ... See full document

... 96. Hou, J.; Yu, X.; Shen, Y.; Shi, Y.; Su, C.; Zhao, L., Triphenyl Phosphine- Functionalized Chitosan Nanoparticles Enhanced Antitumor Efficiency Through Targeted Delivery of Doxorubicin to Mitochondria. ... See full document

... expected. The number of layers should be the same for both fittings but it is ...not. The difference is quite big because above 10, the number of layers doesn’t change much, so ... See full document

... CHALLENGES OF THE ANALYSIS OF BASIC SOLUTES BY REVERSED PHASE LIQUID CHROMATOGRAPHY: SOME POSSIBLE APPROACHES FOR IMPROVED ...some of the difficulties ... See full document

... based on the realization that the periodic state of an SMB process can be mimicked by a single-column chromatographic process with a recycle lag of (N−1)τ time units, where N is ... See full document

... HIGH-PERFORMANCE LIQUID CHROMATOGRAPHY. The development of Chiral Stationary Phases (CSPs) for high performance liquid chromatography has been studied by various ... See full document

... occurs on some traditional (insoluble) IN lo- cated in an environment that is supersaturated with respect to ...occur on traditional IN or mixed aerosol particles, which come into contact with pre-existing ... See full document

... with the application of hydrodynamic ...particles of 5 – 15 microns diameter (average diameter was estimated to be 10 ...and the flow rates stayed in the range ... See full document

... properties. The therapeutic properties exhibited by the Aloe vera exudates have been associated to the presence of certain compounds, such as, chromones, anthrones and ...monitored ... See full document

... at the adsorption parameters presented in ...case the harder separation is between the components B and C, since the selectivity factors are a AB = K B /K A = ...to the Strategy ... See full document