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Reference type: Journal
Authors: Lian ZR, Wang JT
Article Title: Study of molecularly imprinted solid-phase extraction of gonyautoxins 2,3 in the cultured dinoflagellate Alexandrium tamarense by high-performance liquid chromatography with fluorescence detection.
Publication date: 2013
Journal: Environmental Pollution
Volume: 182
Page numbers: 385-391.
DOI: 10.1016/j.envpol.2013.07.039
Alternative URL: http://www.sciencedirect.com/science/article/pii/S0269749113004156

Abstract: A highly selective sample cleanup procedure combined with molecularly imprinted solid-phase extraction (MISPE) was developed for the isolation of gonyautoxins 2,3 (GTX2,3) from Alexandrium tamarense sample. The molecularly imprinted polymer microspheres (MIPMs) were prepared by suspension polymerization using caffeine as the dummy template molecule, methacrylic acid as the functional monomer, ethylene glycol dimethacrylate as the cross-linker and polyvinyl alcohol as the dispersive reagent. The polymer microspheres were used as a selective sorbent for the solid-phase extraction of gonyautoxins 2,3. An off-line MISPE method followed by high-performance liquid chromatography (HPLC) with fluorescence detection for the analysis of gonyautoxins 2,3 was established. Finally, the extract samples from Alexandrium tamarense were analyzed. The results showed the imprinted polymer microspheres exhibited high affinity and selectivity for gonyautoxins 2,3. The interference matrix in the extract were obviously cleaned by MISPE and the extraction efficiency of gonyautoxins 2,3 in the sample ranged from 81.74% to 85.86%
Template and target information: gonyautoxins 2,3, GTX 2,3
Author keywords: Molecularly imprinted polymer microspheres, suspension polymerization, Solid-phase extraction, Gonyautoxins 2,3, Alexandrium tamarense

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