MIPs logo MIPdatabase      MIP2020 Conference logo Use this space
Custom Search
Reference type: Journal
Authors: Tamayo FG, Martin-Esteban A
Article Title: Selective high performance liquid chromatography imprinted-stationary phases for the screening of phenylurea herbicides in vegetable samples.
Publication date: 2005
Journal: Journal of Chromatography A
Volume: 1098
Issue: (1-2)
Page numbers: 116-122.
DOI: 10.1016/j.chroma.2005.08.068
Alternative URL: http://www.sciencedirect.com/science/article/B6TG8-4H3932P-4/2/e6b21cfffe57056b08f2734c1cbc18a0

Abstract: Molecularly imprinted polymers (MIPs) for the determination of phenylurea herbicides have been synthesized by polymerisation of the appropriated reagents mixture within the pores of preformed spherical silica particles leading to a silica-MIP composite material. Subsequently, the silica matrix was etched away resulting in MIP beads which can be considered the "mirror image" of the original silica mold. The MIP particles were packed in stainless steal HPLC columns (125 mm x 4.6 mm I.D.) and the materials were evaluated as imprinted-stationary phases for phenylurea herbicides. The imprinting effect of the originated specific binding sites for the selective recognition of phenylurea herbicides was clearly demonstrated. An efficient separation of a mixture of phenylurea herbicides in two groups, with or without a methoxy group in the chemical structure, was achieved and well shaped and defined peaks were obtained. Finally, the optimum imprinted column (prepared using linuron as template, 2-(trifluoromethyl)-acrylic acid as monomer, 72 h of polymerisation time and the subsequent dissolution of silica matrix) was used for the LC-UV screening of phenylurea herbicides directly from vegetable sample extracts without any previous clean-up step at low concentration level in less than 10 min
Template and target information: linuron, phenylurea herbicides
Author keywords: phenylureas, molecular imprinting, stationary phases, HPLC, vegetable samples, screening


  mipdatabase.com logo special offer joke shirt  Lab Heroine Periodic bag  HE-MAN polymer chemistry shirt

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