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|Title:||Determination of competitive adsorption isotherms of enantiomers on a dual-site adsorbent||Authors:||Lim, B.-G.
Concentration pulse chromatography
Microcrystalline cellulose triacetate
|Issue Date:||Nov-1995||Citation:||Lim, B.-G.,Ching, C.-B.,Tan, R.B.H. (1995-11). Determination of competitive adsorption isotherms of enantiomers on a dual-site adsorbent. Separations Technology 5 (4) : 213-228. ScholarBank@NUS Repository.||Abstract:||The competitive adsorption isotherms of praziquantel enantiomers on microcrystalline cellulose triacetate were determined by concentration pulse chromatography. A model comprising a non-selective linear term and a selective first order improved Langmuir term was found to fit the data excellently. It is postulated that this chiral stationary phase consists of two types of binding sites: one responsible for the chiral, selective interactions and one responsible for the achiral, non-selective interactions of the enantiomers with the stationary phase. The selective sites are easily saturated compared to the non-selective sites, accounting for the experimental observation of lower separation efficiency at higher enantiomer concentrations. © 1995.||Source Title:||Separations Technology||URI:||http://scholarbank.nus.edu.sg/handle/10635/67398||ISSN:||09569618|
|Appears in Collections:||Staff Publications|
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