In this study, activated carbon-organic polymer (AC-polymer) extraction columns were prepared via microwave-assisted polymerization. The AC-polymer was applied in polymer monolith microextraction (PMME) of phenolic acids (PAs) in food samples. Structural characterization using Raman and Fourier transform infrared (FTIR) spectroscopy revealed the successful incorporation of AC into polymer monolith. In contrast to neat polymer in which low extraction efficiency (17.0–57.7%) was observed, the AC-polymer (8 mg AC, 4 cm column length) afforded better extraction efficiency for PAs ranging from 75.8 to 99.8% for intra-day with less than 1.4% relative standard deviations (RSDs) and inter-day precision ranging from 74.3 to 100.1% (<2.7% RSDs). The extraction efficiency for column-to-column were found to be in the range of 72.8–100.5% (<2.0% RSDs) (n = 3). Under the optimized conditions, the AC-polymer monolithic column was successfully applied in PMME of PAs in fruit wine and cranberry juice samples at concentrations of <4.8 mg L⁻¹ and 26.54 mg L⁻¹, respectively.

在这项研究中，活性炭-有机聚合物（AC-聚合物）萃取柱通过以下方法制备微波辅助聚合。将AC聚合物应用于食品样品中酚酸（PAs）的聚合物整体微萃取（PMME）。使用拉曼光谱和傅立叶变换红外（FTIR）光谱进行结构表征表明，成功将AC掺入了聚合物整体结构中。与观察到低萃取效率（17.0–57.7％）的纯净聚合物相反，AC聚合物（8 mg AC，4 cm色谱柱长度）对PA的日内分离效率为75.8至99.8％，提供了更好的萃取效率。相对标准偏差（RSD）小于1.4％，日间精度从74.3至100.1％（RSD <2.7％）。色谱柱至色谱柱的萃取效率为72.8–100.5％（相对标准偏差<2.0％）（n = 3）。在优化的条件下，^-1和26.54 mg L ^-1。