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Reference type: Journal
Authors: Liu YX, Jian GQ, He XW, Chen LX, Zhang YK
Article Title: Preparation and Application of Core-Shell Structural Carbon Nanotubes-Molecularly Imprinted Composite Material for Determination of Nafcillin in Egg Samples.
Publication date: 2013
Journal: Chinese Journal of Analytical Chemistry
Volume: 41
Issue: (2)
Page numbers: 161-166.
DOI: 10.1016/S1872-2040(13)60626-X
Alternative URL: http://www.sciencedirect.com/science/article/pii/S187220401360626X

Abstract: A novel composite material based on core-shell molecularly imprinted polymers (MIPs) was prepared by combining surface imprinting technique with a sol-gel process based on carbon nanotubes (CNTs) coated with silica. The morphology and structure of the products (CNTs@Naf-MIPs) were characterized by transmission electron microscopy (TEM) and Fourier transform infrared spectroscopy (FT-IR). The adsorption properties of CNTs@Naf-MIPs were demonstrated by equilibrium rebinding experiments and Langmuir analysis. The maximum adsorption capacity and dissociation constant of CNTs@Naf-MIPs were 9.5 mg g-1 and 56.6 mL mg-1, respectively. The CNTs@Naf-MIPs showed a fast kinetics and reached the equilibrium within only 30 min. The feasibility of determination of nafcillin from real samples was testified in spiked egg samples with concentration of 5 and 10 μg kg-1 by using the imprinted polymer as the adsorption material. The recoveries of nafcillin ranged from 61.3% to 84.3% with good accuracy. The MIPs provided a fast and convenient determination platform for nafcillin in egg samples
Template and target information: nafcillin
Author keywords: Molecularly imprinted polymers, carbon nanotubes, sol-gel, nafcillin, Egg


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