期刊
ANALYTICAL METHODS
卷 13, 期 26, 页码 2936-2942出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d1ay00679g
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资金
- National Nature Science Foundation of China [21777089, 22076086]
- Shandong Provincial Key Laboratory of Test Technology for Material Chemical Safety [2018SDCLHX001]
- Natural Science Foundation of Shandong Province [ZR2019BH086]
- Key Research and Development Program of Shandong Province [2019GSF111016, 2019JZZY010121]
- Jinan City University and Institute Innovation Team Project [2019GXRC032, 2020GXRC008]
- Shandong Province Taishan Scholar Program [ts201712063, ts20190948]
An ionic covalent organic framework (Fe3O4@EB-TFB-iCOF) was synthesized and characterized as a polar adsorbent for the magnetic solid phase extraction (MSPE) of four polar organic acids. A method for the determination of organic acids based on MSPE-HPLC-UV was established, showing good linear regression, high precision, and low detection limit, with a recovery rate of environmental water samples ranging from 73.3% to 101.0%. This method provides a possibility for high sensitivity analysis of polar organic acids.
An ionic covalent organic framework (Fe3O4@EB-TFB-iCOF) as a polar adsorbent was synthesized and characterized. It was applied in the magnetic solid phase extraction (MSPE) of four polar organic acids, namely, 2-(2,4,5-trichlorophenoxy)propionic acid, 2-methyl-4-chlorophenoxy acetic acid, naphthyloxyacetic acid, and naphthylacetic acid. The organic acids were detected by high performance liquid chromatography-ultraviolet analysis (HPLC-UV). A method for the determination of organic acids based on MSPE-HPLC-UV was established. The method shows good linear regression (R-2 >= 0.9950), high precision (1.53-3.80%, n = 6), and low detection limit (0.10-0.49 ng mL(-1)). The recovery rate of environmental water samples ranges from 73.3% to 101.0%. This method provides a possibility for high sensitivity analysis of polar organic acids.
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