Issue 2, 2003
From the journal:

Analyst

Assessment of the cross-reactivity and binding sites characterisation of a propazine-imprinted polymer using the Langmuir-Freundlich isotherm

Esther Turiel,†a   Concepcion Perez-Condea  and  Antonio Martin-Esteban†*b  

* Corresponding authors

a Departamento de Quimica Analitica, Facultad de Ciencias Quimicas, Universidad Complutense de Madrid, 28040 Madrid, Spain

b Departamento de Quimica y Materiales, Universidad Europea de Madrid, Villaviciosa de Odon, 28670 Madrid, Spain
E-mail: antonio.martin-esteban@irmm.jrc.be
Fax: +32-14-571 787
Tel: +32-14-571 735

Abstract

In this paper, the Langmuir-Freundlich isotherm is used to model the interaction of several triazines (desethylatrazine, desisopropylatrazine, simazine, atrazine, propazine and prometryn) with a propazine-imprinted polymer and to explain the observed cross-reactivity. Different rebinding experiments (each herbicide alone or all together in a mixture) were carried out and the experimental binding isotherms were fitted to the Langmuir-Freundlich isotherm. The fitting coefficients obtained (total number of binding sites, mean binding affinity and heterogeneity index) allowed the description of the kind of binding sites present in the imprinted polymer under study. It was concluded that the recognition mechanism was mainly governed by the molecular size although slight differences in the molecular structure may also play an important role. The obtained results suggest that the use of this new methodology can open new pathways for understanding how molecular recognition in imprinted polymers takes place.

About
Cited by
Related
Download options Please wait...

Article information

DOI
https://doi.org/10.1039/B210712K
Article type
Paper
Submitted
30 Oct 2002
Accepted
16 Jan 2003
First published
22 Jan 2003

Analyst, 2003,128, 137-141

Permissions

Request permissions

Assessment of the cross-reactivity and binding sites characterisation of a propazine-imprinted polymer using the Langmuir-Freundlich isotherm

E. Turiel, C. Perez-Conde and A. Martin-Esteban, Analyst, 2003, 128, 137 DOI: 10.1039/B210712K

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements