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Reference type: Journal
Authors: Fang YJ, Yan SL, Ning BA, Liu N, Gao ZX, Chao FH
Article Title: Flow injection chemiluminescence sensor using molecularly imprinted polymers as recognition element for determination of maleic hydrazide.
Publication date: 2009
Journal: Biosensors and Bioelectronics
Volume: 24
Issue: (8)
Page numbers: 2323-2327.
DOI: 10.1016/j.bios.2008.10.034
Alternative URL: http://www.sciencedirect.com/science/article/B6TFC-4V17CMF-4/2/06a1f7f9188e59880d9b9768d7c752f7

Abstract: A novel flow injection chemiluminescence (CL) sensor for the determination of maleic hydrazide (MH) using molecularly imprinted polymer (MIP) as recognition element is reported. The MH-MIP was synthesized by thermal initiated polymerization in methanol, using methacrylic acid (MAA) as functional monomer and ethylene glycol dimethacrylate (EGDMA) as cross-linker in the maleic hydrazide template molecule. Molecular modeling was employed to simulate the possible recognition process of the MIP, and to achieve high selectivity. Then the synthesized MH-MIP was employed as recognition element by packing into flow cell to establish a novel flow injection CL sensor. The CL intensity responded linearly to the concentration of MH in the range 3.510-4-5.010-2mg/mL with a detection limit of 6.010-5mg/mL (3σ), which is lower than that of conventional methods. The relative standard deviation (RSD) for the determination of 1.0μg/mL of MH was 2.7% (n=11). The sensor is reusable and has a great improvement in sensitivity and selectivity for CL analysis. As a result, the new MIP-CL sensor had been successfully applied to the determination of MH in vegetable samples
Template and target information: maleic hydrazide, MH
Author keywords: molecularly imprinted polymer, flow injection, Chemiluminescence sensor, Maleic hydrazide


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