Construction of covalent triazine-based frameworks and application to solid phase microextraction of polycyclic aromatic hydrocarbons from honey samples. (30th August 2020)

• Record Type: Journal Article
• Authors: Wang, Wenjin; Zhang, Shuaihua; Li, Zhi; Li, Jinqiu; Yang, Xiumin; Wang, Chun; Wang, Zhi
• Is Part Of: Food chemistry. Volume 322(2020)
• Publication Date: 2020-08-30
• Subjects: Polycyclic aromatic hydrocarbons -- Honey samples -- Covalent triazine-based frameworks -- Solid-phase microextraction; Food -- Analysis -- Periodicals; Food -- Composition -- Periodicals; 664
• DOI: 10.1016/j.foodchem.2020.126770
• Languages: English
• ISSNs: 0308-8146

Abstract

Highlights: Three covalent triazine-based frameworks (CTFs) were synthesized. A novel CTFs-based SPME was developed for the effective extraction of PAHs. The method was effectively used for the analysis of different honey samples. Abstract: 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 π-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 chromatography-mass spectrometry detection was successfully applied for the determination of PAHs in honey samples with satisfactory recoveries (82.0–116.8%).