Porous organic cage incorporated monoliths for solid-phase extraction coupled with liquid chromatography-mass spectrometry for identification of ecdysteroids from Chenopodium quinoa Willd
文献类型： 外文期刊
第一作者： Wang, Hongwei
作者： Wang, Hongwei;Tan, Jianeng;Shang, Xianchao;Zheng, Xuan;Liu, Xinmin;Hou, Xiaodong;Du, Yongmei;Wang, Hongwei;Wang, Jing;Shang, Xianchao;Zheng, Xuan;Liu, Xinmin;Du, Yongmei
作者机构：
关键词： Monoliths; Porous organic cages; Incorporation; 20-Hydroxecdysone; LC-MS
期刊名称：JOURNAL OF CHROMATOGRAPHY A （ 影响因子：4.759； 五年影响因子：4.302 ）
ISSN： 0021-9673
年卷期： 2019 年 1583 卷
页码：
收录情况： SCI
摘要： Here, a porous organic cage (POC)-incorporated polymeric monolith was fabricated in a syringe through the introduction of the POC into poly(ethylene glycol dimethacrylate) monolith in a one-step traditional free-radical polymerization proceess. The resulting monolithic phases were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier-transform infrared spectroscopy (FT-IR), powder X-ray diffraction (PXRD), nitrogen adsorption/desorption experiments and thermogravimetric analysis (TGA), which confirmed the successful incorporation of the POC in the monolithic matrix. The functionality of the POC-incorporated poly(EDMA) monolith facilitated for the solid phase extraction (SPE) of 20-hydroxecdysone (an ecdysteroid) from Chenopodium quinoa Willd. extract coupled with UPLC-QqQ-MS/MS, exhibiting satisfactory accuracy (93-106%), precision (< 6.5%) and reusability. In addition, UPLC-Q-Exactive-Orbitrap-MS/MS analysis of the quinoa sample after SPE by POC-incorporated monolith provided the identification of 20-hydroxecdysone and three other ecdysteroids. These results demonstrate the potential of POC-incorporated monoliths for the SPE of ecdysteroids from complex plant systems. (C) 2018 Elsevier B.V. All rights reserved.
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