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Reference type: Journal
Authors: Lenain P, Diana Di Mavungu J, Dubruel P, Robbens J, De Saeger S
Article Title: Development of Suspension Polymerized Molecularly Imprinted Beads with Metergoline as Template and Application in a Solid-Phase Extraction Procedure toward Ergot Alkaloids.
Publication date: 2012
Journal: Analytical Chemistry
Volume: 84
Issue: (23)
Page numbers: 10411-10418.
DOI: 10.1021/ac302671h

Abstract: The first successfully developed molecularly imprinted polymer toward six ergot alkaloids and their respective epimers is described. A new imprinting molecule, metergoline, was used as template analogue in the production of suspension polymerized beads. These spherical particles functioned as selective sorbent in a solid-phase extraction column. The application of this column in the cleanup of barley samples prior to liquid chromatography coupled with tandem mass spectrometry allowed simple and cost-efficient sample preparation. The performance of the imprinted polymer and a non-imprinted control polymer was evaluated. This includes determination of the recovery values and the matrix effect of each of the 12 tested ergot alkaloids as well as a cross-reactivity study with 25 common mycotoxins. The binding isotherms were obtained for metergoline, thus allowing comparison with other (imprinted) sorbents. A comparison between bulk and suspension polymerization is provided to determine the appropriate production technique
Template and target information: ergot alkaloids, metergoline, ergotamine, Et, ergotaminine, Etn, ergocornine, Eco, ergocorninine, Econ, ergocryptine, Ekr, ergocryptinine, Ekrn, ergocristine, Ecr, ergocristinine, Ecrn, ergosine, Es, ergosinine, Esn, ergometrine, Em, ergometrinine, Emn


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