Non-covalent and semi-covalent molecularly imprinted polymers for selective on-line solid-phase extraction of 4-nitrophenol from water samples

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Caro, E. and Masque, M. and Marce, R.M. and Borrull, F. and Cormack, P.A.G. and Sherrington, D.C. (2002) Non-covalent and semi-covalent molecularly imprinted polymers for selective on-line solid-phase extraction of 4-nitrophenol from water samples. Journal of Chromatography A, 963 (1-2). pp. 169-178. ISSN 0021-9673 (https://doi.org/10.1016/S0021-9673(02)00360-6)

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Abstract

Two molecularly imprinted polymers (MIPs) have been synthesised for the selective extraction of 4-nitrophenol (4-NP) from water samples. One polymer was synthesised via a non-covalent approach and the other via a semi-covalent approach. The selectivity of the polymers for 4-NP was evaluated when these polymers were applied in on-line solid-phase extraction (MISPE) coupled to reversed-phase HPLC. The MISPE conditions for both MIPs were optimised and a clean-up step was included to eliminate non-specific interactions. Differences between the two MIPs were observed with the non-covalent MIP being the more selective of the two, whereas the recoveries were slightly higher for the semi-covalent MIP. The performance of the imprinted polymers in the MISPE of real water samples was also evaluated.

ORCID iDs

Caro, E., Masque, M., Marce, R.M., Borrull, F., Cormack, P.A.G. ORCID logoORCID: https://orcid.org/0000-0002-3390-8176 and Sherrington, D.C.;
CORE (COnnecting REpositories)