In this work, covalent organic frameworks (COF) derived porous carbon was prepared through employing TpPa-1 as self-sacrificed template and used as solid phase microextraction (SPME) fiber coating. Owing to the high specific surface area and uniform pore size distribution, the resulting porous carbon exhibited excellent extraction ability toward PAHs. Coupled with gas-chromatography mass spectrometry (GC–MS), direct immersion SPME based on the resulting porous carbon was applied for analyzing eight polycyclic aromatic hydrocarbons (PAHs). Under the optimal conditions, the developed method exhibited a wide linear range for PAHs (30–30,000 μg kg⁻¹) along with low limits of detection (LODs, 3.12–8.55 μg kg⁻¹) and limits of quantification (LOQs, 10.4–28.5 μg kg⁻¹). Moreover, the proposed method exhibited high reliability in its application on the determination of PAHs in soil samples, highlighting the application potential of COF derived porous carbons in monitoring aromatic pollutants in the environmental samples.

在这项工作中，通过采用 TpPa-1 作为自牺牲模板并用作固相微萃取 (SPME) 纤维涂层制备了共价有机骨架 (COF) 衍生的多孔碳。由于高比表面积和均匀的孔径分布，所得多孔碳对多环芳烃表现出优异的萃取能力。结合气相色谱质谱 (GC-MS)，基于所得多孔碳的直接浸渍 SPME 用于分析八种多环芳烃 (PAH)。在最佳条件下，所开发的方法对多环芳烃 (30–30,000 μg kg ^-1 )表现出较宽的线性范围以及较低的检测限 (LOD，3.12–8.55 μg kg ^-1 ) 和定量限 (LOQ，10.4– 28.5 微克公斤^-1）。此外，所提出的方法在测定土壤样品中多环芳烃的应用中表现出较高的可靠性，突出了 COF 衍生的多孔碳在监测环境样品中的芳香族污染物方面的应用潜力。