Enantioseparation of racemic alpha-cyclohexyl-mandelic acid across hollow fiber supported liquid membrane
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چکیده
منابع مشابه
Enantioseparation of Racemic α-Cyclohexyl-Mandelic Acid across Hollow Fiber Supported Liquid Membrane
Este artigo trata da separação enantiomérica do ácido α-cicloexilmandélico contendo cobre(II) N-dodecil-(L)-hidroxiprolina (CuN 2 ) como um carregador quiral, usando uma membrana líquida suportada em fibra oca. Um modelo matemático de transporte e separação enantiomérica de compostos quirais foi deduzido; o coeficiente de partição observado entre a fase de alimentação e a membrana, a fase de el...
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This paper deals with the resolution of racemic -cyclohexyl-mandelic acid containing copper(II) N-dodecyl-(L)-hydroxyproline (CuN2) as a chiral carrier across hollow fiber supported liquid membrane. A mathematical model of transport and resolution of chiral compounds was deduced, the observed partition coefficient between the feed phase and the membrane phase, the stripping phase and the membra...
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This work describes a new extraction method with hollow-fiber liquid-phase microextraction based on facilitated pH gradient transport for analyzing hippuric acid and mandelic acid in aqueous samples. The factors affecting the metabolites extraction were optimized as follows: the volume of sample solution was 10 mL with pH 2 containing 0.5 mol·L-1 sodium chloride, liquid membrane containing 1-oc...
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Um método empregando “bulk liquid membrane” (BLM) e o complexo ácido di(2-etilhexil) fosfórico (D2EHPA) e ácido O,O’-dibenzoil-(2R, 3R)-tartárico (L-(-)-DBTA) foi desenvolvido para a separação por extração do ácido mandélico racêmico (rac MA). Os efeitos de tempo de resolução, concentração de D2EHPA na fase orgânica, concentração de rac MA na fase doadora, velocidade de agitação e temperatura s...
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Hollow fiber supported ionic liquid membranes (SILMs) were tested using the bubble point method to investigate potential failure modes, including the maximum transmembrane pressure before loss of the ionic liquid from the support. Porous hollow fiber supports were fabricated with different pore morphologies using Matrimid(®) and Torlon(®) as the polymeric material and 1-hexyl-3-methylimidalzoli...
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ژورنال
عنوان ژورنال: Journal of the Brazilian Chemical Society
سال: 2008
ISSN: 0103-5053
DOI: 10.1590/s0103-50532008000300026