Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710062, China.
Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710062, China.
Talanta. 2023 Jan 15;252:123860. doi: 10.1016/j.talanta.2022.123860. Epub 2022 Aug 23.
Novel magnetic and fluorinated porous carbons (M-FPCs) with high fluorine content, large pore volume and specific surface area were first prepared by carbonizing and further fluorinating Fe-Zr bimetal-organic frameworks. The M-FPCs exhibit excellent adsorption performance toward perfluorinated compounds (PFCs), and the maximal adsorption capacity ranges from 518.1 to 919.3 mg g for various PFCs. Based on this property, an environmental analytical method of dispersive solid-phase extraction (DSPE) using M-FPCs as adsorbents coupled with ultra-high-performance liquid chromatography-mass spectrometry (UPLC-MS) was developed for the detection of trace PFCs. The linear range was as wide as 10-200 ng L, and low limit of detection (0.02-0.16 ng L) and good precision (relative standard deviation less than 6.11% for intra-day and inter-day) were achieved. This method was applied to the detection of trace PFCs in environmental water and soil samples with satisfactory results.
首次通过碳化和进一步氟化 Fe-Zr 双金属有机骨架，制备出具有高氟含量、大孔体积和比表面积的新型磁性和氟化多孔碳（M-FPC）。M-FPC 对全氟化合物（PFCs）表现出优异的吸附性能，各种 PFCs 的最大吸附容量范围为 518.1 至 919.3 mg/g。基于这一特性，开发了一种以 M-FPC 作为吸附剂的分散固相萃取（DSPE）环境分析方法，结合超高效液相色谱-质谱法（UPLC-MS），用于检测痕量 PFCs。线性范围很宽，为 10-200 ng/L，检测限低（0.02-0.16 ng/L），精密度好（日内和日间相对标准偏差小于 6.11%）。该方法应用于环境水样和土壤样品中痕量 PFCs 的检测，结果令人满意。
