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High-surface β-Ketoenamine linked covalent organic framework driving broad-spectrum solid phase microextraction on multi-polar aromatic esters
Analytica Chimica Acta ( IF 6.2 ) Pub Date : 2022-06-08 , DOI: 10.1016/j.aca.2022.340040
Yalan Hu 1 , Yueru Shi 2 , Yuefan Liu 1 , Yixin Kuang 2 , Suxin Zhou 2 , Luyi Chen 3 , Sai Ouyang 1 , Ningbo Zhou 1 , Juan Zheng 2 , Gangfeng Ouyang 4
Affiliation  

Aromatic esters have been widely used in daily life with non-ignorable dangers, such as plasticizer, flavor, and preservative. Their wide applications and corresponding hazards caused by overuse have promoted the rapid development of sensitively analytical method for effective regulation. However, the variety makes it challenging for broad-spectrum and simultaneous extraction of diverse aromatic esters from the highly complex cosmetic samples. To our delight, a covalent organic framework, named DaTp (1, 3, 5-triformylphloroglucinol-2, 6-diaminoanthracene), possessing high specific surface, excellently thermochemical stability, and abundant electron-rich heteroatoms, has been synthesized and fabricated as a competitive solid phase microextraction coating for extracting the trace analytes with diverse polarity, through the hydrophobic interaction, π-π conjugation and hydrogen bond. Herein, this self-made SPME fiber has been further coupled with gas chromatography-tandem mass spectrometry (GC-MS) to determine the multi-polar aromatic esters in cosmetics packaged with plastic. This developed analytical method showed wide liner ranges, low limits of detection, good repeatability and reproducibility. Finally, the aromatic esters in four cosmetic samples were quantified precisely with satisfactory recoveries (80.7%–118%).



中文翻译:

高表面 β-酮烯胺连接的共价有机骨架驱动多极性芳香酯的广谱固相微萃取

芳香族酯类已广泛用于日常生活中,具有不可忽视的危害,如增塑剂、香精、防腐剂等。它们的广泛应用和过度使用带来的相应危害,促进了有效监管的灵敏分析方法的快速发展。然而,这种多样性使得从高度复杂的化妆品样品中同时提取多种芳香酯变得具有挑战性。令我们高兴的是,一种名为 DaTp (1, 3, 5-triformylphloroglucinol-2, 6-diaminoanthracene) 的共价有机骨架具有高比表面、优异的热化学稳定性和丰富的富电子杂原子,已被合成并制造为具有竞争力的固相微萃取涂层,通过疏水相互作用萃取具有不同极性的痕量分析物,π-π共轭和氢键。在此,这种自制的固相微萃取纤维进一步与气相色谱-串联质谱(GC-MS)相结合,测定了塑料包装化妆品中的多极性芳香酯。这种开发的分析方法显示出宽线性范围、低检测限、良好的重复性和重现性。最后,对四种化妆品样品中的芳香酯进行了精确定量,回收率令人满意 (80.7%–118%)。

更新日期:2022-06-13
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