Exploring coating materials with superior extraction efficiency has always been the pursuit in the field of solid phase microextraction (SPME). Metal coordination clusters with high thermal and chemical stability, abundant functional groups as active adsorption site are the promising coatings. In the study, a Zn₅(H₂Lⁿ)₆(NO₃)₄ (Zn₅, H₃Lⁿ =(1,2-bis-(benzo[d]imidazol-2-yl)-ethenol) cluster coating was prepared and applied for SPME of ten phenols. Zn₅ based SPME fiber exhibited high extraction efficiencies for phenols in headspace (HS) mode, which circumvented the pollution of SPME fiber. The adsorption isotherm and theoretical calculation indicated the adsorption mechanism of phenols on Zn₅ was hydrophobic interaction, H-bond interaction and π-π stacking. Under the optimized extraction conditions, an HS-SPME-GC-MS/MS method was developed for the determination of ten phenols in water and soil samples. For ten phenolic compounds in water and soil samples, the linear ranges were 0.5–5000 ng/L and 0.5–250 ng/g, respectively. The limits of detection (LODs, S/N = 3) were 0.010–1.20 ng/L and 0.0048–0.16 ng/g, respectively. The precisions of single fiber and fiber-to-fiber were lower than 9.0% and 14.1%, respectively. The proposed method was applied for the detection of ten phenolic compounds in various water and soil samples, showing satisfactory recovery (72.1–118.8%). This study delivered a novel and efficient SPME coating material for the extraction of phenols.

探索具有优异萃取效率的包被材料一直是固相微萃取（SPME）领域的追求。具有高热稳定性和化学稳定性的金属配位簇、作为活性吸附位点的丰富官能团是很有前途的涂层。研究中，Zn ₅ (H ₂ L ⁿ ) ₆ (NO ₃ ) ₄ (Zn ₅ , H ₃ L ⁿ =(1,2-bis-(benzo[ d ]imidazol-2-yl)-ethenol)簇制备涂层并应用于 10 种酚类化合物的固相微萃取 Zn ₅基于 SPME 纤维在顶空 (HS) 模式下对酚类物质表现出高提取效率，从而避免了 SPME 纤维的污染。_{吸附等温线和理论计算表明了酚类化合物在Zn 5}上的吸附机理是疏水相互作用、氢键相互作用和π-π堆积。在优化的提取条件下，建立了 HS-SPME-GC-MS/MS 方法测定水和土壤样品中的 10 种酚类化合物。对于水和土壤样品中的十种酚类化合物，线性范围分别为 0.5–5000 ng/L 和 0.5–250 ng/g。检测限（LOD，S/N = 3）分别为 0.010–1.20 ng/L 和 0.0048–0.16 ng/g。单纤和纤对纤精度分别低于9.0%和14.1%。所提出的方法用于检测各种水和土壤样品中的 10 种酚类化合物，显示出令人满意的回收率 (72.1–118.8%)。本研究提供了一种用于酚类提取的新型高效 SPME 涂层材料。