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Reference type: Journal
Authors: Pan MF, Wang JP, Fang GZ, Tang WW, Wang S
Article Title: Synthesis and characterization of a molecularly imprinted polymer and its application as SPE enrichment sorbent for determination of trace methimazole in pig samples using HPLC-UV.
Publication date: 2010
Journal: Journal of Chromatography B
Volume: 878
Issue: (19)
Page numbers: 1531-1536.
DOI: 10.1016/j.jchromb.2010.04.004
Alternative URL: http://www.sciencedirect.com/science/article/B6X0P-4YVJ430-1/2/236ffcd6ab83beba547ddb664ebb5a87

Abstract: A novel molecularly imprinted polymer that could be applied as enrichment sorbent was prepared using methimazole (MMZ) as the template molecule, methacrylic acid as functional monomer, ethylene glycol dimethacrylate as cross-linker. Though evaluated by static, kinetic and competitive adsorption tests, the polymer exhibited high adsorption capacity, fast kinetics and good selective ability. A method for determination of trace MMZ was developed using this polymer as enrichment sorbent coupled with high performance liquid chromatography focusing on complex biological matrices. Under the optimum experimental conditions, the MMZ standard is linear within the concentration range studied, that is, from 0.5 μg L-1 to 150 μg L-1 (r2 =0.9941). Lower limits of detection (LOD, at S/N = 3) and quantification (LOQ, at S/N = 10) in pig samples were 0.63 μg kg-1 and 2.10 μg kg-1 for kidney, 0.51 μg kg-1 and 1.70 μg kg-1 for liver, 0.56 μg kg-1 and 1.86 μg kg-1 for muscle, respectively. Recoveries and relative standard deviation (RSD, n = 9) values for precision in the developed method were from 71.14% to 88.41% and from 2.53% to 6.18%
Template and target information: methimazole, MMZ
Author keywords: Methimazole, molecularly imprinted polymer, Solid-phase extraction, high performance liquid chromatography


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