Citation: Xuemei Wang, Xinglan Cui, Hong Ji, Fangbing Wang, Yacong Liu, Xinzhen Du, Xiaoquan Lu. A hybrid monolithic column based on flower-shaped zeolitic imidazolate framework for efficient capillary microextraction of brominated flame retardants[J]. Chinese Chemical Letters, ;2021, 32(10): 3199-3201. doi: 10.1016/j.cclet.2021.03.034 shu

A hybrid monolithic column based on flower-shaped zeolitic imidazolate framework for efficient capillary microextraction of brominated flame retardants

Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China

wxm98@163.com

Received Date: 25 December 2020
Revised Date: 25 January 2021
Accepted Date: 12 March 2021
Available Online: 15 March 2021

Figures(3)

A novel flower-shaped zeolitic imidazolate framework (ZIF) doped organic-inorganic hybrid monolithic column (ZIF-HMC) was prepared by a simple sol-gel "one-step" method and utilized for efficient capillary microextraction (CME) of four brominated flame retardants. The prepared monolithic was characterized by Fourier transform infrared, scanning electron microscopy, X-ray photoelectron spectroscopy, energy disperse spectroscopy, and N₂ adsorption-desorption. The parameters of CME were optimized by orthogonal array design. Under the optimal conditions, the ZIF-HMC showed excellent extraction efficiency, the limit of detection (LODs) and the limit of quantification (LOQs) were in the range of 0.52~3.1 μg/L and 1.7~10 μg/L, respectively, and the proposed method demonstrated good recovery (88.8%–116.6%) with the RSD less than 13.6% and a reusability of at least 30 times. The ZIF-HMC possessed great potential for separating organic pollutants and the strategy used here could be extended to prepare other derivatized HMC functionalized monoliths.
- Capillary microextraction,
- Brominated flame retardants,
- Hybrid monolithic column,
- Zeolitic imidazolate framework
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沈阳化工大学材料科学与工程学院沈阳 110142