化学
三聚氯氰
固相微萃取
三嗪
邻苯二甲酸
色谱法
芴
萃取(化学)
共价键
检出限
三聚氰胺
固相萃取
共价有机骨架
有机化学
聚合物
气相色谱-质谱法
质谱法
作者
Zhuo Wang,Xinyue Zhang,Qian Yang,Shuaihua Zhang,Guifen Chang,Xiaohuan Zang,Chun Wang,Zhi Wang
标识
DOI:10.1016/j.chroma.2022.463474
摘要
Owing to various health threats associated with phthalic acid esters (PAEs), this category of endocrine-disrupting compounds has attracted more and more public scrutiny. However, the efficient preconcentration of PAEs from complex food-contacted plastics still remains challenging. Herein, three covalent triazine-based frameworks (CTFs) were constructed by facile Friedel-Crafts reactions of cyanuric chloride (CC), with triptycene (TPC), fluorene (FL) and 1,3,5-triphenylbenzene (TPB), respectively. Three CTFs were then employed as solid-phase microextraction (SPME) coatings for the extraction of PAEs. Benefiting from the large surface area and high pore volume, the newly-synthesized CC-TPC based SPME method exhibited large enrichment factors (978-2210), low limits of detection (0.027-0.10 ng g - 1), satisfactory linear ranges (0.09-20 ng g - 1), acceptable repeatabilities (4.3-9.6%) and high relative recoveries (92.0-104.6%).
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