A porous aromatic framework (PAF-47) synthesized through Suzuki coupling reaction was introduced to prepare PAF-47/polydimethylsiloxane (PDMS) coated stir bar by sol-gel technique. PAF-47/PDMS coating provided high extraction recovery (77.6–90.6%, the ratio of actual enrichment factor (EF) to theoretical EF) for five polychlorinated biphenyls (PCBs) in a relatively short time (60 min), exhibiting a faster extraction kinetics over commercial PDMS coating (12/24 h). Based on this, a new method based on PAF-47/PDMS coated stir bar sorptive extraction and high-performance liquid chromatography-diode array detection was proposed for trace analysis of target PCBs in environmental water. Under the optimized conditions, the limits of detection for five PCBs were within 44–70 ng/L, with actual EF of 64.0–71.5-fold (maximal EF of 83.3-fold). This method was successfully used to detect trace PCBs in Yangtze River water and East Lake water, with recoveries of 81.0–113% and 86.1–111%, respectively.

引入通过铃木偶联反应合成的多孔芳烃骨架（PAF-47），通过溶胶-凝胶技术制备PAF-47/聚二甲基硅氧烷（PDMS）涂层搅拌棒。PAF-47/PDMS 涂层在相对较短的时间（60 分钟）内为五种多氯联苯 (PCB) 提供了高提取回收率（77.6–90.6%，实际富集因子 (EF) 与理论 EF 的比率），表现出更快的提取商业 PDMS 涂层的动力学（12/24 小时）。在此基础上，提出了一种基于PAF-47/PDMS涂层搅拌棒吸附萃取和高效液相色谱-二极管阵列检测的环境水中痕量目标PCBs分析新方法。在优化条件下，五种 PCB 的检测限在 44-70 ng/L 之间，实际 EF 为 64.0-71.5 倍（最大 EF 为 83.3 倍）。