期刊
JOURNAL OF CHROMATOGRAPHY A
卷 1624, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.chroma.2020.461217
关键词
Solid-phase microextraction; Mesoporous covalent organic polymer nanospheres; Friedel-crafts condensation; Polycyclic aromatic hydrocarbons; Nitrated and oxygenated derivatives
资金
- National Natural Science Foundation of China [31571925, 31671930]
- Science and Technology Foundation of Hebei Agricultural University [ZD201703]
- Youth Top-Notch Talent Foundation of Hebei Provincial Universities [BJ2018024]
- Natural Science Foundation of Hebei Province [B2017204025, C2017204019]
A mesoporous covalent organic polymer (COP) was synthesized through a facile Friedel-Crafts condensation between p-quaterphenyl and trimesoyl chloride, which was designated as COP-QP-TC. Featured with hollow nanospheres architecture, permanent mesoporosity (2.54 nm), large surface area (536 m(2) g(-1)), as well as high thermal and chemical stability, the newly-synthesized COP-QP-TC was utilized as a solid-phase microextraction (SPME) coating for the effective preconcentration of some polycyclic aromatic hydrocarbons (PAHs) and their nitrated and oxygenated derivatives. Combined with gas chromatography-mass spectrometric (GC-MS) detection, the COP-QP-TC based SPME method exhibited high enrichment factors (248-799), low limits of detection (1.31-3.00 ng L-1), good linear range (4.37- 500 ng L-1) and acceptable precisions (relative standard deviations <10.3%). The COP-QP-TC was successfully applied for the SPME of some PAHs and their derivatives from environmental water samples with good method recoveries ranging from 85.8% to 114.4%. (C) 2020 Elsevier B.V. All rights reserved.
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