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Molecularly imprinted polymer for solid-phase extraction of ephedrine and analogs from human plasma

✍ Scribed by Martina Lasáková; Didier Thiébaut; Pavel Jandera; Valérie Pichon

Publisher
John Wiley and Sons
Year
2009
Tongue
English
Weight
406 KB
Volume
32
Category
Article
ISSN
1615-9306

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✦ Synopsis

Abstract

A molecularly imprinted polymer (MIP) was synthesized and evaluated to selectively extract ephedrine from human plasma. The MIP synthesis was performed in chloroform with methacrylic acid as a functional monomer and the target alkaloid as a template molecule. The resulting MIP was applied to the selective extraction of ephedrine from a pure aqueous medium. A recovery about 74% was obtained using the MIP with only 7% on the nonimprinted polymer (NIP). A very straightforward selective SPE procedure was then successfully applied to the direct extraction of ephedrine from spiked human plasma with a high extraction recovery (68%) on the MIP with no recovery on the NIP. Moreover, the MIP was used for the selective extraction of catecholamine neurotransmitters, i.e. adrenaline and noradrenaline.

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