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Reference type: Journal
Authors: Appell M, Jackson MA, Wang LJC, Bosma WB
Article Title: Determination of Citrinin Using Molecularly Imprinted Solid Phase Extraction Purification, HPLC Separation, and Fluorescence Detection.
Publication date: 2015
Journal: Journal of Liquid Chromatography & Related Technologies
Volume: 38
Issue: (20)
Page numbers: 1815-1819.
DOI: 10.1080/10826076.2015.1113546

Abstract: A liquid chromatography based method to detect citrinin in corn was developed using molecularly imprinted solid phase extraction (MISPE) sample clean-up. Molecularly imprinted polymers were synthesized using 1,4-dihydroxy-2-naphthoic acid as the template and an amine functional monomer. Density functional calculations suggest the mimic template interacts with the functional monomer in a similar manner as citrinin. Freundlich isotherm analysis indicated the template provided a significant imprinting effect for citrinin binding. A high performance liquid chromatography with fluorescence detection (HPLC-FD) method to detect citrinin in maize was developed utilizing the imprinted polymers for sample clean-up (excitation at 330 nm; emission at 500 nm). Recoveries of citrinin in spiked corn samples (0.03-3 μg g-1) were between 82.3 - 91.5%. This study demonstrates that molecularly imprinted polymers are applicable in the solid phase extraction clean-up of corn samples for citrinin determination by HPLC-FD
Template and target information: 1,4-dihydroxy-2-naphthoic acid, mimic template, citrinin
Author keywords: food safety, HPLC, MIP, MISPE, molecularly imprinted polymer, mycotoxin


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