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  • Title: Determination of cyproheptadine in feeds using molecularly imprinted solid-phase extraction coupled with HPLC.
    Author: Yang J, Wang Z, Zhou T, Song X, Liu Q, Zhang Y, He L.
    Journal: J Chromatogr B Analyt Technol Biomed Life Sci; 2015 May 15; 990():39-44. PubMed ID: 25855316.
    Abstract:
    A novel method was developed for the determination of cyproheptadine in feeds using molecularly imprinted solid-phase extraction coupled with high-performance liquid chromatography. The polymers were prepared using cyproheptadine as a template molecule, methacrylic acid as a functional monomer, ethylene glycol dimethacrylate as a cross-linking agent, and dichloromethane as a solvent by bulk polymerization. Under the optimum solid-phase extraction conditions, the molecular imprinting cartridge can selectively extract and enrich cyproheptadine from a variety of feeds. Mean recoveries of cyproheptadine from four kinds of feeds spiked at 0.1, 1.0 and 10mgkg(-1) ranged from 85.5% to 96.2%, with intra-day and inter-day relative standard deviation less than 10%. The calibration curve of cyproheptadine was good linear relationship (r>0.9993) within the range of 0.1-50μgmL(-1). The limit of detection (LOD) and the limit of quantification (LOQ) were 0.04 and 0.1mgkg(-1), respectively.
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