期刊
FOOD CHEMISTRY
卷 322, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2020.126770
关键词
Polycyclic aromatic hydrocarbons; Honey samples; Covalent triazine-based frameworks; Solid-phase microextraction
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]
Honey, a highly nutritious functional food, might be contaminated by polycyclic aromatic hydrocarbons (PAHs) during its production and/or harvest. The preconcentration and analysis of trace levels of PAHs from the complex sample matrices like honey still poses challenges for analytical researchers. In this study, three different covalent triazine-based frameworks (CTFs) were synthesized and explored as the solid-phase microextraction (SPME) coating for the extraction of some PAHs from various honey samples. Among the CTFs, cyanuric chloride-p-quaterphenyl (CC-QP) exhibited the highest extraction capability toward PAHs due to its largest specific surface area and pi-electrons system. Under the optimum experimental conditions, the CC-QP based SPME method exhibited wide linearity (0.10-100 ng g(-1)), low limits of detection (0.03-0.19 ng g(-1)) and good reproducibility (relative standard deviations < 9.9%). The new SPME method coupled with chromatographymass spectrometry detection was successfully applied for the determination of PAHs in honey samples with satisfactory recoveries (82.0-116.8%).
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