Determination of cyproheptadine in feeds using molecularly imprinted solid-phase extraction coupled with HPLC.

Jianwen Yang, Zongnan Wang, Tong Zhou, Xuqin Song, Qingyong Liu, Yuman Zhang, Limin He

Index: J. Chromatogr. B. Analyt. Technol. Biomed. Life Sci. 990 , 39-44, (2015)

Full Text: HTML

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. Copyright © 2015 Elsevier B.V. All rights reserved.