In this study, a novel hollow mesoporous carbon spheres-based fiber (HMCSs-F) was fabricated to immobilize HMCSs onto a stainless steel wire for solid-phase microextraction (SPME). Characterization results showed that the HMCSs-F possessed a large specific surface area, high porosity and uniform pore size. To demonstrate the extraction performance, a series of polycyclic aromatic hydrocarbons (PAHs) was chosen as target analytes. The experimental parameters including extraction and desorption conditions were optimized. Compared to commercial fibers, the HMCSs-F exhibited better extraction efficiency for PAHs. More interestingly, a good extraction selectivity for PAHs from the complex matrix was observed in these HMCSs-F. The enhanced SPME performance was attributed to the unique pore structure and special surface properties of the HMCSs. Furthermore, under the optimum conditions, the limits of detection (LODs) for the HMCSs-F were in the range of 0.20–1.15 ng L⁻¹ with a corresponding relative standard deviation that was below 8.6%. The method was successfully applied for the analysis of PAHs in actual environmental water samples with recoveries ranging from 85.9% to 112.2%. These results imply that the novel HMCSs-F have potential application in environmental water analysis.

在这项研究中，新型的空心中空碳球基纤维（HMCSs-F）被制造为将HMCSs固定在不锈钢线上用于固相微萃取（SPME）。表征结果表明，HMCSs-F具有较大的比表面积，高孔隙率和均一的孔径。为了证明提取性能，选择了一系列多环芳烃（PAH）作为目标分析物。优化了包括萃取和解吸条件在内的实验参数。与商用纤维相比，HMCSs-F对PAH的提取效率更高。更有趣的是，在这些HMCSs-F中，从复杂基质中获得了对PAHs的良好萃取选择性。SPME性能的提高归因于HMCS的独特孔结构和特殊表面特性。^-1，相应的相对标准偏差在8.6％以下。该方法成功用于实际环境水样中多环芳烃的分析，回收率在85.9％至112.2％之间。这些结果表明，新型HMCSs-F在环境水分析中具有潜在的应用前景。