title: Novel molecularly imprinted polymers with carbon nanotube as matrix for selective solid-phase extraction of emodin from kiwi fruit root.
abstract: In this paper, we present a novel surface imprinting technique for the preparation of molecularly imprinted polymers/multi-walled carbon nanotubes (MIPs/MWNTs) for extraction of emodin from kiwi fruit root. The MIPs/MWNTs were characterised by scanning electron microscopy (SEM) and Fourier transform-infrared spectroscopy (FT-IR). The properties involving adsorption dynamics, static adsorption, and selective recognition capacity were evaluated. The MIPs/MWNTs exhibited good site accessibility in which it only took 60 min to achieve adsorption equilibrium and highly selective recognition for the template emodin. Furthermore, the performance of the MIPs/MWNTs as solid phase extraction (SPE) material was investigated in detail. The proposed MIPs/MWNTs-SPE procedure for emodin exhibited satisfactory recoveries ranging from 89.2% to 93.8% for real samples. It was used for the purification and enrichment of emodin from kiwi fruit root successfully.
authors.affiliation: Key Laboratory of Hunan Forest Products and Chemical Industry Engineering, Jishou University, Zhangjiajie 427000, China; College of Chemistry and Chemical Engineering, Jishou University, Jishou 416000, China.
authors.forename: Xiao
authors.initials: X
authors.lastname: Yang
authors.forename: Zhaohui
authors.initials: Z
authors.lastname: Zhang
authors.forename: Jiaxing
authors.initials: J
authors.lastname: Li
authors.forename: Xing
authors.initials: X
authors.lastname: Chen
authors.forename: Minlei
authors.initials: M
authors.lastname: Zhang
authors.forename: Lijuan
authors.initials: L
authors.lastname: Luo
authors.forename: Shouzhuo
authors.initials: S
authors.lastname: Yao
mesh_terms: D029042:Actinidia / Q000737:chemistry* / Q000378:metabolism; D000327:Adsorption; D000814:Aniline Compounds / Q000737:chemistry; D002851:Chromatography, High Pressure Liquid; D004642:Emodin / Q000737:chemistry / Q000302:isolation & purification*; D008855:Microscopy, Electron, Scanning; D054802:Molecular Imprinting; D037742:Nanotubes, Carbon / Q000737:chemistry*; D018517:Plant Roots / Q000737:chemistry / Q000378:metabolism; D011108:Polymers / Q000737:chemistry*; D052616:Solid Phase Extraction / Q000379:methods*; D017550:Spectroscopy, Fourier Transform Infrared
chemical_list: D000814:Aniline Compounds; D037742:Nanotubes, Carbon; D011108:Polymers; C416807:polyaniline; D004642:Emodin
keywords: Emodin; Kiwi fruit root; Molecularly imprinted polymers; Multi-walled carbon nanotubes; Solid-phase extraction