MIPs logo MIPdatabase      MIP2020 Conference logo Use this space
Custom Search
Reference type: Journal
Authors: Sajonz P, Kele M, Zhong GM, Sellergren B, Guiochon G
Article Title: Study of the thermodynamics and mass transfer kinetics of two enantiomers on a polymeric imprinted stationary phase.
Publication date: 1998
Journal: Journal of Chromatography A
Volume: 810
Issue: (1-2)
Page numbers: 1-17.
DOI: 10.1016/S0021-9673(98)00247-7

Abstract: The adsorption isotherms of D- and L-phenylalanine anilide (PA) on an L-phenylalanine anilide imprinted stationary phase have been determined using staircase frontal analysis, An aqueous buffer- organic solvent mixture has been used as mobile phase. The measurements were done at temperatures of 40, 50, 60 and 70 degrees C for sample concentrations ranging between 5.10(-4) to 1 g/l. It was found that the adsorption data fit well to both the Freundlich and the Bi-Langmuir isotherm models. Examination of the best values of the numerical coefficients of the Bi-Langmuir model shows that the site class representing the binding sites with the highest binding energy exhibits a very low saturation capacity for the non-imprinted enantiomer, indicating a high selectivity for the imprinted L- enantiomer. The low energy site class also shows some selectivity for the L-enantiomer. Mass transfer rate coefficients were obtained for each single breakthrough curve by using the transport model of chromatography. It was found that the mass transfer coefficient of L- PA increases very rapidly with the sample concentration while there is only a slight increase for the other enantiomer. (C) 1998 Elsevier Science B.V. All rights reserved

  Periodic table Soup - the chemical formula for soup apron  Periodic table Bag bag  Meerkat somebody mention coffee mug

Molecules Special Issue call      Appeal for information


Join the Society for Molecular Imprinting
Logo of the Society for Molecular Imprinting

New items RSS feed
new items RSS feed  View latest updates

Sign-up for e-mail updates:
Choose between receiving an occasional newsletter or more frequent e-mail alerts.
Click here to go to the sign-up page.

Is your name elemental or peptidic? Enter your name and find out by clicking either of the buttons below!
Other products you may like:
view listings for MIP books on eBay:

Mickey Mouse 90th Anniversary banner