Separation of enantiomers
Separation of enantiomers of a chiral epoxide by simulated moving bed chromatography
... objective of this paper is to present a complete Licosep 12-26 ...matographic separation of ...Preparation of the chiral stationary phase and which allows operation of the SMB up to ...
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Separation of enantiomers of 1a,2,7,7a-tetrahydro-3-methoxynaphtha-(2,3b)-oxirane by liquid chromatography: laboratory-scale elution chromatography and modelling of simulated moving bed
... Simulation of continuous chromatographic separation of the racemic mixture of Sandoz epoxide in a simulated moving bed was carried out and the effect of mass transfer coeffici[r] ...
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Separation of mandelic acid enantiomers using aqueous biphasic systems containing chiral selectors
... example of chiral selectors are ...capable of discriminating different neurotransmissors as DOPA or ...the separation of enantiomers by HPLC. In the work of Matarasvihili et ...
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Modeling strategies for enantiomers separation by SMB chromatography
... In fact, most of the benefits of a countercurrent operation can be achieved using an adsorbent bed divided into a number of fixed-bed columns, while the inlet (eluent and feed[r] ...
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Interpretative optimization of the isocratic ion chromatographic separation of anions
... (IC) separation of the nine anions (formate, fluoride, chloride, nitrite, bromide, nitrate, phosphate, sulfate and ...and separation was done on a Dionex AS14 ion-exchange ...influence of ...
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Development of Integrated Separation Processes with Green Solvents
... the commercial reverse osmosis membranes studied in Chapter 2 and the ionic liquids studied in Chapters 3 and 4. However, difficulties arose in operation and poor results were obtained. Furthermore, it is known that ...
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Zeolite Beta membranes for the separation of hexane isomers
... consisting of perpendicular straight channels ...channels of effec- tive pore diameter ...tion of C 6 isomer mixtures at low partial pressure by fixed bed ...adsorption of linear and ...
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Comparative in vitro study of the inhibition of human and hen esterases by methamidophos enantiomers
... ability of methamidophos or its analogues to cause delayed neuropathy in hens (Vilanova et ...values of this esterase in lymphocytes could be used as a bioindicator of OPIDN in ...potential of ...
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Chromatographic Separation of Dyes in a Fixed Bed Adsorber
... One of the objectives was testing capacity of a mesoporous silica based adsorbent in wastewater ...chromatographic separation of a mixture of dyes in a fixed bed ...plan of ...
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Separation of dyes with reversible aqueous biphasic systems
... number of studies regarding the phase behaviour of ternary systems composed of ILs + water + inorganic salts has been reported [56, 58, ...One of these studies showed that the influence ...
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Separation of Light Naphtha for the Octane Upgrading of Gasoline
... the separation of gases such as air into nitrogen and oxygen, water removal from air, hydrogen purification, and n-paraffins ...developments of the PSA technique are generally described in several ...
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Chiral gas chromatography in the resolution of enantiomers involved in fruit flavours.
... RESOLUTION OF ENANTIOMERS INVOLVED IN FRUIT ...use of chiral gas chromatography in resolving optically active stereoisomers and racemates found in fruit ...types of chiral selectors applied to ...
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Extraction and separation of drugs using alternative solvents
... some of them entailing top selling drugs, were modified using green chemistry ...production of titanium byproducts needed to be carefully managed, so that additional energy, inputs, costs and risks to the ...
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Aqueous biphasic systems using chiral ionic liquids for the enantioseparation of mandelic acid enantiomers
... implementation of ABS to chiral separations has been achieved resorting to two distinct strategies: one that relays on the addition of an extra chiral selector to the system formulation (not essential to ...
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Phase Equilibria for Separation of Organic Sulfur Compounds for Cleaner Fuels
... ) of sulfur compounds in hydrocarbons are very important in the reliable design of sulfur removal processes producing cleaner ...∞ of sulfur compounds from vapor-liquid equilibrium (VLE) binary ...
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Synthesis, characterization and modeling of zeolitic membranes for gas separation
... Some of them present also a little maximum ...modeling of methane/silicalite-1 and ethane/silicalite-1 assuming a weak confinement scenario as was presented in the previous sec- tion (figures ...Contrarily ...
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Integration of reaction and separation with lipases: an overview
... Such type of integrated reactor/separator pre- sents several advantages, viz.: (i) operation in a continuous mode is possible and, therefore, sub- strates can ente[r] ...
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Peptide separation of commercial fermented milk during refrigerated storage
... combination of Lactobacillus helveticus and Saccharomyces cerevisiae (Nakamura et ...capable of producing bioactive peptides during the fermentation process and during cold storage (Phelan et ...production ...
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Separation of Azeotropic Mixtures using High Ionicity Ionic Liquids
... means of a platinum resistance thermometer coupled to a Keithley 199 System ...ml of the sample was added to the thermostatic cell and vigorously ...–heating of the samples, ionization in the ...
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Separation and Purification Technology
... level of supersaturation were herein com- pared, the higher supersaturation implied a lower value of the agglomeration kernel, as expected [8], probably because higher sulfide concentrations caused a ...
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